Disclaimer: I stole the case from the movie Untraceable.

The first thing John noticed was the dampness surrounding him, invading his nose, mouth, and every single pore of his body. It didn't feel as though he was breathing air, but liquid gathered in a particularly nasty pond. Then, he became aware of the position he was in: he was lying on something solid, his ankles and wrists were tied with cable-tie, and a thick rope bound his torso to the thing he was lying on. His heart was beating extremely fast, his breathing was laboured, and he could feel panic creeping close, latching at his brain and trying to engulf him.

He tried to remember his military training. One of his superiors had joked, saying there were as many kidnapping opportunities as there were sunburns in Afghanistan. He had only meant it as an incentive to remember what to do if they found themselves in that situation, but it had worked; if John had been lucky enough to get sunburns only, he still remembered what to do. The first step was to thwart the abduction and, well, it was a little late for that, wasn't it? He pushed aside the feeling of shame; he didn't have time for that.

He couldn't linger on that feeling, he needed to remain calm. Sure, he was in a delicate situation, but he needed to stay positive; escape was still an option as long as he remained calm. For the next minutes, he concentrated on taking deep, slow breaths through his nose, exhaling through his mouth. He pictured himself being somewhere peaceful, in the last place he had felt at ease: Sherlock's flat. Still breathing slowly, he closed his eyes, and the hard table he was lying on disappeared, replaced by the comfortable leather sofa in 221B Baker Street. He didn't know where the image came from, but he imagined Sherlock putting a heavy duvet on him and stroking his hair. Eventually, he calmed down, and he could open his eyes without feeling as if he was on the verge of a panic attack.

The next thing he needed to do was observe. He had been unconscious up until a few minutes ago, so he didn't know where he was, or how much time had passed since he had left Sherlock in the kitchen. Thinking about Sherlock and the kitchen made his mouth go dry; he had been annoyed with Sherlock, and he had left him alone to get some air, that's when he had been abducted. No one knew where he was; his sister thought he was at Mrs Holmes' house, and Mrs Holmes thought he was with Sherlock. As for Sherlock, there was no way he would come looking for him, not after being called heartless.

What a stupid thing to say to the man who had welcomed him with open arms into his flat. In the days they had spent together, Sherlock had showed him countless times how not heartless he was; they had had long discussions during which Sherlock had opened up, he had been considerate and thoughtful, and he had shown several times that he possessed a sense of humour (albeit a slightly disturbing one, which John loved). Was he really angry with Sherlock for not caring about the victims, or was he scared that Sherlock didn't actually care about him? Most likely the latter, but now wasn't the time to think about that.

So, observations. He was obviously in a terribly old room that seemed at least partially underground. It was so damp the wallpaper was practically peeling off the walls, and thinking of wallpaper, the person who had chosen it had taste as horrifying as Sherlock's landlady. As far as he knew, there were two kidnappers: the thin Jim from PCeU whom John could overcome without a doubt even with his hands and feet tied, if only he weren't stuck to the table. The other one was taller and much more robust than Jim, but John hadn't had a proper look, having seen him only briefly while he and Sherlock had chased him across London.

His two assailants weren't in the room right now, and for all he knew, dozens of men could be waiting upstairs. He didn't know whether they were armed, but they had sedated—wait! They had sedated him, and he had been knocked out almost immediately. Had he been given M99? Was he in the hands of the Internet Killer? Jim Moriarty was a computer expert, it would have been easy for him to set up an un-closable website. With the help of an accomplice, he could have been at work, unsuspected, while his partner kidnapped and filmed the victims.

Great, so he was the prisoner of someone who enjoyed broadcasting his murders on the Internet, so there was no doubt that's what was awaiting him in the near future. Unfortunately, once the broadcast would start, he had no chance of being spared. His thoughts were interrupted when he heard steps coming closer. Then, a door creaked, and it wasn't long before he was faced with Jim's horrible smile looking down at him.

"Finally! I was afraid you were going to be late for your own party," Jim said, his high voice sending chills running down John's immobilised spine.

"It's you then, the Internet Killer," John said flatly. He had to remain calm; being arrogant or violent would only make matters worse.

"Yes, it's me," he said, smiling as he insisted on the last syllable.

"Where are we?" John asked.

"Johnny, Johnny, Johnny… Do you seriously think I will tell you? You and my last victim almost ruined everything with your little Morse code stunt, I can't risk you blinking away our location as soon as you're online, can I?"

"Why me?"

"Because Sherlock Holmes seems to have taken an interest in you, and I'm extremely interested in Sherlock Holmes," Jim answered.

"Why not kidnap him, then?" John asked. Not because he wanted Sherlock to be in his current position, no, far from it. He had grown attached to the consulting detective in the short time he had known him, perhaps a little too attached, and the last thing he wanted was to see Sherlock bound and helpless on Jim's website.

"Because I don't care about you, I don't care about what you'd feel if Sherlock were to die. But if you die, that's interesting."

"Why?" It was an old cliché, but he was buying time by trying to distract Jim from the computer and camera he supposed were in another corner of the room. He still had time. As long as he wasn't hanging from the ceiling, he had time.

"I've been watching Sherlock Holmes for a long time now. You see, I'm what our dear detective would probably call a 'consulting criminal'; people come to me with various problems and I fix it for them. Kidnapping, murder, theft, insider-trading, torture; there is nothing I haven't organised. Sherlock Holmes has unknowingly interfered with my plans more times than I can count—"

"So you seek revenge. I still don't understand why it has to be me."

"Revenge? Oh no, no no no no, nothing so ordinary," Jim said with a grimace. "Sherlock and I are alike; two extremely intelligent men, both selfish, cunning, brilliant, and devoted to our work. The perfect partners. Yet, for some unfathomable reason, Sherlock decided to side with the police."

John didn't know how much time had passed since he had been sedated. A few hours certainly. This situation didn't feel real; he was tied to a table while a madman who looked fresh out of a movie explained his motives. If John's life were a movie, Sherlock would wait until the very last moment to barge in through the door and rescue him, long coat billowing behind him. Oh please, let his life be a movie, even a cheesy one, he didn't care.

"I worked out a plan for Sherlock to see how rotten the world is, to show him that working with Scotland Yard is useless; no matter how hard he works, I will always win because people are rooting for me. You saw how quickly your two predecessors died; the citizens of London didn't care that they were good and well-liked men, they didn't care that Cameron Banks was volunteering for the Scouts, and that Peter Howarth was an exemplary husband, they wanted to watch them suffer and die. I will always win, and I wanted Sherlock to see, hoping it would make him jump ship and join me."

"Sherlock is a good man!" John spat, losing some of his control.

"No Johnny-boy, Sherlock Holmes is a great man, and the two of us could do exceptional things together. We'd be unstoppable."

"He'll never work with you. Sherlock helps people, and he saves lives."

"That's not what you were telling him earlier, is it?" Jim asked tauntingly.

John felt all the blood leaving his face. How did Jim know about what had happened in Sherlock's kitchen earlier?

"How?" he asked.

Jim threw his head back and laughed, his whole body shaking in the process. Then, he stopped abruptly; it was a terrifying sight.

"People always assume their houses are private, far away from prying eyes and ears. Yet, it's so easy for a computer expert with a good Trojan to gain access to other people's lives, especially when someone receives dozens of emails and puzzles every day from potential clients. It was surprisingly simple to gain access to Sherlock's webcam. I must admit it's been riveting to watch you and him dancing around each other. You're quite special Johnny; I had never seen Sherlock with a friend before."

John felt dull anger pulsing through his veins. This insane man had violated Sherlock's privacy, he had breached his sanctuary and had turned him into a lab rat, something to observe and study. Again, he reminded himself that he needed to stay calm and clear-headed, that it was the key to escaping unharmed. Taking a few deep breaths, he waited for Jim to continue.

"I really don't know what he sees in you, but I know he does like you. He likes you quite a lot. At first, all I wanted was to show Sherlock what he was missing, to lure him into a world without rules and limitations, but after seeing you two playing house together, I was inspired. You know what people always say; if you want someone, kill his friends."

"I'm sure no one says that," John said.

"Yeah you're right, they don't. But I hope it'll catch on."

"Well, good luck with that."

"Aren't you curious to know how Sherlock will react when he'll realise that, because of him, the only friend he's had in years is dead."

"If I die, it will be your fault, not Sherlock's!"

"If only I'd been quicker, cleverer! Oh, John, what did I do? I let you down, boohoo John I loved you so much," Jim mocked, and his cold voice made John shiver, his whole body covered in goose bumps.

"Now Johnny, if you'll excuse me, I have some work to do. We'll go live in the afternoon, and I want everything to be perfect. You won't see me again; I'll be at work when you die, but I'll leave you in very capable hands. Sebastian was in the army too; you'll have loads of things to talk about.

Then, Jim patted John's cheek and left. John still had no idea what time it was, or how long he had until his own personal counter went up on the website. To keep his mind sharp and busy, he started thinking about ways to escape, taking in what he could see of his surroundings. He was a soldier; he wouldn't go down without a fight.

:::

To say Sherlock had a dreadful night was an understatement. The samples he and John had collected were useless; there was nothing in the basement that could help him identify the killer. Without tangible evidence to focus on, his thoughts kept coming back to John. In order not to keep his hopes up, he kept telling himself that John was gone for good, that he had left for Mummy's house, and that he wouldn't be back. Yet, with every passing hour, he could feel the burden of crushed hope bending his spine. No matter how hard he tried not to, he kept perking up when a cab stopped outside, but he was disappointed every time, the urge to smash his head against a wall becoming stronger every time the cars that weren't dropping John off drove away.

He waited until late morning to go to Scotland Yard and see Lestrade. He was anxious to know if someone had managed to track Patrick Bateman, the elusive man from the M99 buyers list, but most of all, he had to get out of his flat. He was getting restless. He needed to get away from John's empty chair in the kitchen, from the rumpled duvet on the sofa, and from John's suitcase that was still in the upstairs bedroom, radiating false hope all the way down to the living room.

When Sherlock arrived, Lestrade was pacing in his office. He didn't look as though he had slept at all the night before; he had dark circles under his eyes, his shirt was ruffled, and the hand holding his coffee mug was shaking, a sign that this wasn't even close to being his first cup. Upon hearing Sherlock, the DI turned around.

"What are you doing here? Have you found anything?"

"No, we're dealing with a very intelligent killer," Sherlock said.

"Don't tell me you fancy him," Lestrade said with a smirk, and Sherlock rolled his eyes as a response.

"Where is your new friend this morning?" Lestrade asked as he hit refresh on his browser to check whether there was something new on the website. There wasn't.

"He's my brother's friend. He left."

"That's too bad, you two seemed like you were getting along."

Sherlock ignored him, and he started inspecting the board where the DI kept all the information about the case. There had to be something there, no killer was infallible, especially if Sherlock was on the case. He inspected the evidence scattered across the wall, sometimes adding a few notes of his own while Lestrade watched him intently.

They spent the next two hours discussing the case. Donovan and Anderson joined them at one point, followed by Jim from PCeU. Anderson had arrived to the same conclusions as Sherlock regarding the crime scene, Donovan's search for Patrick Bateman had been fruitless, and Jim still couldn't help them identify who had set up the website. All so useless, it was infuriating to be in the same room as them.

"Video feed is back," Lestrade said.

Following the DI's announcement, Sherlock was almost immediately behind the desk to look at the screen. The video feed took a while to load, and Sherlock waited impatiently while drumming his fingers on the back of Lestrade's chair.

When the video finally appeared, Sherlock felt as if he were falling without ever hitting the ground. His heart felt as though it was in his throat, and it was beating furiously while Lestrade's office was blurring. The voices were becoming more and more distant until he couldn't hear them. He wasn't in Scotland Yard anymore, the external stimuli could barely reach him; he was locked inside his brain, lost in a storm while every single one of his neurons screamed John, John, JOHN. Then, he was violently brought back to reality when he felt an unwelcome hand on his shoulder, and he looked around to see Jim watching him attentively.

"Sherlock, are you okay?" he asked, and Sherlock didn't answer, but he moved away from the touch, his eyes still fixed on the computer.

Contrary to the other times, the camera was zoomed in on John's face, and they couldn't see anything that could've helped them determining where he was. He was hanging upside down, gagged and blindfolded, but everything else was out of sight. The counter showing the number of viewers was going up at an alarming speed and, if Sherlock was not mistaken, it would be even quicker—no, he couldn't think about that.

"John," he whispered.

:::

Jim's associate wasn't as chatty as Jim had been, but it was uncanny how people seemed to open up when one of the speakers had a death sentence. He had observed the same thing in Afghanistan, but usually the people talking were the dying ones; he couldn't count the number of confessions he had witnessed while tending to fatally wounded soldiers. The man tying his ankles to a chain was named Sebastian (also known as Patrick Bateman), and he had also been in the army, but had been forced to retire for what seemed like highly dubious reasons.

The chain was then tossed over a pipe and was tied down to an iron spool to which a crank had been fastened. Sebastian blindfolded and gagged him, and John felt his back slide against the table as Sebastian turned the crank with difficulty. Too soon, he was dangling upside down a few feet above the ground. Sebastian blocked the crank, pushed the table away, and fastened the cable-tie securely holding John's wrists together to a ring bolted to the floor with a strong rope. He knew the computer and camera equipment were in place a few feet away from him, but the show wasn't on yet.

John managed to keep his heartbeat under control while he heard Sebastian walking away from him and up to the desk where the computer was. He heard the chair creak, followed by the sound of fingers repeatedly hitting the keyboard, and then the rustling of paper that probably meant Sebastian had just opened a newspaper. The show had probably started, then. John's less than ideal position was available for all Britain to see.

John had had enough time to observe the basement to come up with a strategy. Taking one deep breath, he started working on the rope tying his wrists to the ring.

:::

Sherlock's thoughts were spiralling out of control, almost drowning the cacophony in Lestrade's office. His brain was still chanting a panicked chorus of John, John, John, while he was analysing dozens of different ways to save his new friend. Nothing would work; he needed to know where John was before any plan could be put into action.

John still looked calm enough, but his face was virtually unreadable with the gag and blindfold obscuring his features. Sherlock, on the other hand, was in a state of agitation he had never experienced before. Unlike John, he could see the number of viewers growing alarmingly larger, and in order to think properly, he turned away from the computer.

The killer had changed his method, and that was important. Why was it important? It had been the same the other times, even when he had been killing animals. He was thorough and precise; he wouldn't have changed his modus operandi unless something was forcing him to. What could he accomplish by restricting the view around John? There had to be something in the background that could've helped him identify John's location. That only left…most of London. Well, most of London was better than all of London.

"John is somewhere the killer knew I would recognize," Sherlock announced.

"What?" Anderson asked, and Sherlock shot him a nasty look.

"The killer knew I would be able to make out John's location if he showed more than he is now, that's why the camera is zoomed in on his face."

"That makes sense," Lestrade said, "but we can't send a team to every single place you know in London. We need to narrow it down."

"Yes, yes, I know!" Sherlock shouted as he grabbed two fistfuls of his dark curls and started pacing around the room.

"There can't be many places where he could take John and tie him up without anyone noticing. We're not only looking for somewhere private, but also for a place where he could be unbothered for a long period of time. It can't be outdoors; the lighting isn't right," Sherlock said, the words spilling out of his mouth almost uncontrollably.

"I need a list," Lestrade said, grabbing a pen and paper.

Sherlock barely heard him; his eyes were glued to John's face. Behind the gag, he looked as though he was smiling, and that smile went straight to Sherlock's brain, hitting something that managed to make him a little calmer. Through that smile, it seemed as if John was telling him things were going to be fine, and Sherlock wanted nothing more than to believe him.

:::

John smiled when the knot tying his wrists to the ring on the floor finally gave. He couldn't believe his luck; Sebastian had tied an extraordinarily complicated knot, one that was practically impossible to untie for someone who hadn't learned how to do so in the army. Enrolling seemed like the best idea he had ever had, and he continued to smile as he started working on the second part of his plan. He longed to take his blindfold off, but he didn't want to alert Sebastian just yet, and regaining his sight wasn't as important as what he had to do next.

Slowly, he started rocking back and forth.

It was like trying to gain momentum on a playground swing without using his feet. John was pushing himself back and forth while Sebastian chuckled in the background, obviously amused. John knew there was a pole in a particularly dark corner a few feet behind him, and all his thoughts were fixated on it; on how far away it was, and on how wide his trajectory needed to be if he hoped to achieve his goal. He only had one shot; he couldn't screw it up.

:::

On screen, John was now moving. From the way his torso was rocking back and forth, he had obviously managed to free himself from what was tying him to the floor. The more he moved, the wider his trajectory was becoming, inch-by-inch. It was only a matter of time before his swinging brought him off screen, showing a tiny bit of the wall behind him. Sherlock felt as though his heart was going to stop when he caught a glimpse of what was behind John, something that seemed oddly familiar. He held his breath while he waited for John to swing back once more, and when he did, any doubt that remained as to where he was being held captive were erased.

"Baker Street. Now," Sherlock said.

Everyone started moving at once. The policemen got ready to leave while Sherlock urged them on; it wasn't long before they were packed in police cars, sirens blaring as they hurried to Baker Street. For once, Sherlock rode in the same vehicle as Lestrade, his usual reluctance to being seen in a police car forgotten. On the way, Sherlock called Mrs Hudson, and he told her to put the key to the basement flat on her table and leave immediately. When she asked for an explanation, he told her it was for her own safety, and he hung up. He was twitching in his seat, torn between the fear to look at the website and discover it was too late, and the need to see that John was still as safe as he could be. In the end, he decided not to look to keep his head clear of distractions. As he pressed his forehead against the cool window, he willed the people watching John's struggle online to close their Internet browser.

Please, let him live, he thought.

:::

John had successfully built a rhythm, but he wasn't quite there yet. He tried his best not to think about the counter on the website, but part of him was constantly aware of how little time he had left. From the fact that Sebastian hadn't tried to stop him yet, John knew he was still in the crossbow's trajectory. Exactly where he needed to be if he wanted his plan to succeed. Although he couldn't see, he had studied the layout of the room very carefully before he had been blindfolded, and he knew he was getting close.

He swung relentlessly, the pipe creaking and groaning, but unmoving and strong as he thrust his body forward again. Then, when he was swinging back, he threw his arms back as far as they would go, and he successfully managed to grab the pole he was aiming for. The metal felt slippery under his sweaty palms, but he held on as tightly as he could. He could hear the old boiler's rumbling sound beside him and he sighed in relief; he was exactly where he wanted to be. Struggling a little, he managed to pull his blindfold down and he waited.

"No, that won't do," Sebastian said before walking up to John.

It was all a question of timing. By wriggling behind the pole until it supported his chest, John was free to grope for the thin steam pipe of the boiler, and he yanked it as hard as he could. He felt the old metal rupture and the pipe burst open, causing a violent eruption of the pressurised steam. The metal was hot in his hands, but John held on, and he directed the scalding-hot steam at Sebastian's face. Sebastian took a few steps back, trying to get away from the steam, but John didn't let go until the pressure died down and Sebastian was on the floor, his burnt face buried in his also wounded hands.

John still wasn't out of trouble, but the success of his plan's first part made him exhilarated, and he was thrumming with renewed energy. His wrists were still tied together, and he was still hanging from the ceiling, but the battle wasn't lost; it was just beginning. As Sebastian stumbled to his feet, John got ready for the next round.

:::

Sherlock retrieved the key from Mrs Hudson's flat, and he was glad to see she had obeyed him and left. Lestrade was waiting beside the 221C door, but his team was still outside in order not to let the Internet Killer know they were there; the last thing they wanted was for him to panic and kill John before his time was up. It was Lestrade who unlocked the door, and he gestured for his team to follow him. Sherlock had been told to stay behind until the area was secure, but he ignored the DI's orders and rushed inside the basement flat as quickly as he could.

:::

John knew there was no way he would ever free his ankles from the chain and cable tie alone, so he didn't waste any time trying. Instead, he got ready to face Sebastian in the position he was in, taking deep breaths and visualising what he needed to do to bring the other man down. When Sebastian managed to push through the pain and stumble towards him, John waited for the right moment to let go of the pipe, which made him swing towards his kidnapper.

Before Sebastian could hit him, John used his joined hands to deliver an unforgiving blow to his genitalia. Then, when Sebastian fell down, John brought his arms up until they collided violently with the other man's nose. John felt warm blood trickling down his hands, and he grinned behind the gag. However, he didn't have time to bask in his victory; there were frantic footsteps coming down the stairs, which could mean Sebastian's accomplices had been alerted by the noise. In order to get ready for another fight, he took the gag off and waited for the intruders to show themselves

:::

When Sherlock entered Mrs Hudson's dark and damp basement flat, the sight that greeted him was nothing like what he had expected. The first thing he noticed was John who was still hanging from the ceiling, and thankfully still alive. Sherlock experienced a slight surge of panic when he saw John's hands and arms covered in blood, but he soon realised it wasn't his. In fact, the kidnapper looked as though he had had a much worst day; his face, neck and hands were covered in angry red blisters, and his nose was bleeding profusely.

"Jim! It was Jim from PCeU!" John cried out when he saw them entering the room.

Sherlock filed that information for later observation; now was not the time to think about what he had obviously missed, and that had nearly cost John his life. What he needed to do now was to get rid of the weapon still threatening John. Sherlock ran to the crossbow, his heart racing as he pushed it out of the way, making sure it was aimed at a wall instead of John. Meanwhile, Lestrade handcuffed the bloodied man – who wasn't in any condition to put up a fight, thanks to John's special treatment – and shouted for Donovan to ring the Yard and raise the alarm about Jim Moriarty.

Once the threat of the crossbow was eliminated, Sherlock ran over to John and knelt beside him to make sure he was alright. When John assured him that he was fine, albeit a little dizzy, no words could express the relief Sherlock felt. John was safe, he was unharmed, he had survived, and he had saved himself. Was there anything that marvel of a man couldn't do?

With the help of two sergeants from the Yard, they managed to lower John to the floor without putting too much stress on his damaged shoulder, and they cut the cable-ties tying his wrists and ankles together. Sherlock helped him up to his feet, and he put an arm around his waist while John waited for the dizziness to cease. When John murmured "Christ!" and his legs wavered, Sherlock tightened his grip. He didn't even think about their proximity until John wrapped his arms around him and thanked him. Suddenly, it was a little harder to breathe, and Sherlock didn't answer, he just put his other hand on John's back and pulled him closer, his cheek resting on the smaller man's head.

Sherlock didn't know how long they remained that way. He knew there were dozens of things he had to do at the moment; the case wasn't closed, and he needed to think about the fact that the killer had been prancing in front of him for the past few days. However, the only thing that mattered for now was John's steady heartbeat against his chest.

:::