Story title: Son of the devil.

Author's note: Severus may seem a little out of character but remember he is not dealing with students, he is dealing with Voldemort's son.

Chapter titles from the Poem Fire and Ice by Robert Frost

Summary: A new player has entered the field and has his eyes locked onto Severus. Is this an elaborate plan to take down the last resistance the Order holds against Voldemort or something more sinister? Slash HPSS.

Chapter one of nine

Chapter one

Some say the world will end in fire

Harry Potter stood straight and tall in front of the dark lord Voldemort. Eyes forward as if he couldn't see the demon in front of him. Voldemort looked him over circling him like a shark before it a ttacks. Voldemort stopped in front of the younger man, green eyes glaring at something that was beyond Voldemort's sight or understanding.

"It is good to see you again Harry," Voldemort said no malice in his voice.

Harry nodded with out breaking eye contact with the spot on the wall opposite him.

Voldemort lifted a hand and ran a finger down Harry's cheek. Harry gritted his teeth, even though he had found a potion that nearly blocked out Voldemort. If the man touched him it w ould make him feel like he had a sudden migraine. Voldemort knew this fact and used it to determine if the man standing in front of him was in fact the real Harry Potter. Over the years many people claiming to be Harry Potter had found their way into Vo ldemort's house or dungeon. Voldemort always used this test to worm out the real Harry Potter, while the imposters would meet their deaths.

"I haven't seen you in a while, I was beginning to think you had deserted me," Voldemort pulled his hand back.

"I wouldn't dream of doing such I thing Tom," Harry said tonelessly. "I needed to leave for a while. Something came up."

"Something more important then me?" Voldemort snarled.

"No Tom, if you had called I would have come," Harry moved his eyes, for the first time that evening, to stare into Tom's red glaze, unflinchingly. Voldemort using his many skills knew the other man was telling him the truth. Harry's eyes flickered back to the place on the wall. Dismissing Voldemort with his eyes, but Tom knew the boy was listening to his every word.

"I believe you, Harry," Tom sighed collapsing in a seat. Harry stayed standing. "You may sit you know Harry."

"Thank you, but no," Harry said. If any other had said such a thing, Voldemort would have had them screaming under the Cruciatus Curse before the person could blink. With Harry he made no move to do so.

Tom frowned, "What is the matter?"

"Something isn't right…"

"How so?"

Just then a knock sounded from the door to the room. Harry flicked his wrist and concealing charms covered his true features. His hair turned brown and straightened out as his scar disappeared he also aged ten years. He'd changed so much over the years that only the black untameable hair and his scar made him noticeable as Harry Potter. The Order and his friends hadn't seen him for three years and he had changed a lot since then, in fact even if they saw him, his scar would be the only thing that would give him away.

"Enter," Tom called.

Severus entered the room. The dark haired man looked at Harry with interest before dropping to his knees in fr ont of Voldemort.

"We have a problem, my lord." Severus said head bowed.

Voldemort growled pulling his wand to curse the man when Harry's voice stopped him.

"He must have no marks," Harry said softly without looking a t the pair.

Severus waited for Voldemort to curse the other man but it didn't come he titled his head slightly to look at the two. Voldemort was glaring at the other man as if he had interrupted his fun while the other man still stared off into the distance his face hidden behind his shoulder length brown hair.

"Dumbledore would become suspicious if his potions master had to crawl back to school," Harry said turning to Voldemort and Severus.

Severus gasped at the power in the other man's green eyes. The green-eyed man could have easily rival Voldemort and Dumbledore in power. This didn't fair well with the spy.

"Don't you think so, Tom?" Harry asked sliding over to Severus in two graceful steps.

Harry s troked Severus hair as if he was a faithful pet. It took everything in Severus to not move away from the other man's touch.

"Yes, son."

Severus couldn't control the shock on his face. Voldemort chuckled at Severus' reaction.

"Now Severus what is this problem we have?"

"Wormtail has been arrested," Severus said trying to ignore the other man's hands through his hair. No one ever touched his hair let alone run their hands through it.

"Son, did you really have to get Wormtail arrested?" Voldemort asked a slight whine in his tone. He turned to Harry as the other man glazed off into the distance hands still running through Severus' hair.

"Yes, the rat to the dogs. The dogs do like to play with rats. The cats do too and the snakes."

Severus looked up at the other man thinking him mad until he saw the deep intelligence in the man's slightly glazed green eyes. He shivered at the thought of the man welding the power he had with a mind as broken, as Voldemort's own.

"A traitor once, a traitor twice." Harry said, he knelt next to Severus hands now running down the ex-death eater's back. Severus shivered at the man's words and actions. "He will u pset the magical world. Peter Pettigrew back from the dead. What do you think my pet?"

The green eyed man whispered the last part in Severus ear then licked it, making Severus shiver. Severus didn't know if it was just him, but the temperatu re in the room seemed to drop as his skin burned under the man's hands.

"Should I put Plan C into effect, Alexis? Voldemort asked.

"No Plan B. Yes, yes Plan B." Alexis said then his eyes focused and he stopped running his hands down Severus back, and Severus was pained to admit he missed the attention.

Alexis looked up at Voldemort, "Plan B, definitely Plan B. But you know the deal."

"Yes, yes, son. I know." Voldemort waved the other man's conc erns off. "Would you like some time with your pet?"

Severus shivered he was going to be left in the hands of a mad man's son! If it weren't for his years of spying he would have been panicking, as it was his heart was pounding and his mo uth suddenly felt dry.

"No marks father." Harry smirked his eyes unglazed as he looked at both men.

Voldemort smirked back, "Have fun Alexis."

With those words Voldemort swept from the room, he turned back at the door to see Harry sucking on Severus neck.

After Harry was sure Voldemort was out the room and down the hall he pulled away from Severus and stood. He crossed the room and locked the door Voldemort had just exited. Casting silencing spells as for extr a measure.

He turned back to find a very wary and puzzled Potion's professor and grinned. He had always wanted Severus on his knees completely under his control. A childish urge to stick out his tongue and say 'I'm better than you' attacked his mi nd but he held the urge back, but that didn't mean he was going to let the man go.

"Tom's just a big softly if you ask me," Harry told Severus pouring two drinks, smirking on the inside. When he turned back to the older man he found him still kneeling on the floor. "You can't be comfortable on the floor like that, come join me."

Harry waved him over to the table and two chairs.

Severus pulled himself up slowly as if expecting the other man to attack him or jump him. He looked the man over his brown wavy hair reached his neck and framing his face. Bright green eyes stared back at him in a very unnerving way. The man was of average build with a fine-featured face, high cheekbones and a strong jaw line that gave it a masculine look. He's form was slim and by the curves his tight shirt made Severus believed he had a very active live style. Surprisingly the man wore muggle clothing. Black shirt, pants and a long coat that could have easily been mistaken for a robe from far away.

"Don't be afraid Severus I won't hurt you," Alexis comforted and Severus found himself drawn to the other man.

Severus almost pulled out his wand to check for spells as he found himself in front of the man with out thi nking. Alexis placed a glass in his hand; Severus looked down at the amber liquor in the cup. A flick of Alexis's wrist and the chair he was sitting on changed into a lounge. Wandless magic Severus thought in surprise as he filed that piece of information away in the file labelled Alexis Riddle.

"Albus will not worry that you haven't checked in with him yet. Enjoy your freedom for a bit." Alexis whispered, making Severus start. Severus's heart seemed to desert him at those words. He started to run escape plans through his mind and quickly came to the concussion that he was fucked.

However when he looked down he only saw kindness in the green eye's of the son of the man he was betraying.

"What do you mean?" Sever us questioned, feigning ignorance.

The other man sighed and stood, he took the older man into his arms and comfort and warmth washed over the suspicious Slytherin. His mind yelled two different things at him. One to relax into the arms and the othe r to push him away. Severus had never in all his years felt so conflicted and confused as the man holding him made him feel.

'God damn it, Severus! Get a hold of yourself! You have only met the man!' his mind yelled.

"You do not need t o worry so much Severus. If you wish to leave you may," Alexis whispered in his ear then stood back.

Severus suddenly felt cold like Alexis had sucked all the warmth out of his body, like a Dementor. And damn did he want it back, but he stood his ground.

"What have you done to me?" Severus asked hoarsely

The other man cocked his head to the side, "Done to you? I have done nothing."

"You make me feel odd. What are you?" Severus insisted.

"Me I'm a wizard just like yourself nothing more. I have done nothing to you Severus if you wish to leave you may. I am not keeping you here. You are not my prisoner." Alexis told him green eyes telling him the truth.

Alexis stood and crossed the room to the window looking out at the grounds below. His back turned to Severus, if the spy felt the need to kill the son of the devil he could have easily do it. One well placed spell and there would be one less player on the field, however his hand didn't even move to his wand. His mind had already made up its decision without him; he would not kill this night. In fact he was watching the sun play across the figure of Alexis as if the other man was a god controlling the element across his tanned skin.

"I will go then," Severus announced backing up to the door after placing his full glass on the table. Eyes still locked on the other man as if turning his back on him was a great sin.

"Good-bye Severus." Alex is called without moving.

Severus left.

He reported back to the headmaster as soon as he arrived at Hogwarts. Albus was concerned about Voldemort's son and the fact that the man knew Severus was a spy but hadn't told his father. The way Alexis acted was also unnerving. A rumour was running around about Voldemort dabbling in darker arts and mixing breeds of magical creatures. Could Alexis be one of Voldemort's experiments? Severus simply didn't know what to do. Helplessness was a feeling he didn't like feeling one bit.

Severus didn't see Alexis until the next death eater meeting. He stood to the right of Voldemort the whole meeting and said nothing. In fact, to Severus he seemed to not see what was going on around him. Even when the Crucio was cast on the death eaters Alexis didn't even flinch as the death eaters screams echoed around the room. He would just stare at the wall to his left with unwavering intensity. At the end of the meeting Severus was held back.

Severus w aited as the other death eater left in a hurry. Voldemort's snake uncurled from its place at Voldemort's feet as the last of the death eaters left. Voldemort fixed his red stare on Severus as Nagini hissed at his feet before sliding passed him. The sna ke rubbed passed Alexis who didn't move an inch even though a ten-foot snake just slithered over his foot.

"Yes my lord," Severus said.

Kneeling in front of Voldemort as his heart pounded. Had Alexis told Voldemort about him being a spy? No, Voldemort would have unveiled him in front of his faithful death eaters. Then tortured him to death or insanity, or both.

"Severus I need you to make a potion for me," Voldemort demanded.

"Yes, my lord."

& quot;You will make it in the lab with Alexis watching, do you understand?"

"Yes, my lord."

"Good, Alexis will give you the directions of the potion I wish for you to make. Go with him now." Voldemort ordered.

"Yes, my lord."

Severus stood and looked to Alexis to lead him. The other man stood still staring at the opposite wall.

"Alexis." Voldemort said sharply.

"Yes father?" the man said still starring at the wall.

Which to the other two men held nothing of interest besides a mark that could have been blood. Severus tilted his head slightly the mark did look a lot like a cauldron. Severus was brought out of his musing by the dark lord's voice.

"S everus needs to make his potion, Alexis."

"Yes father, follow me Severus." Alexis pulled his eyes away from the wall and walked out of the room Severus following at a distance. Severus was unsure of how Alexis knew where he was going for he would stare straight in front of him and not turn his glaze, even when they went around corners.

Alexis stopped outside one door, which Severus knew to be the lab, and opened it and waved him in. Severus did as ordered and swept into the ro om. The labs torches lit when Alexis clicked his fingers.

Severus stared at him as the other man stared across the room. Severus wasn't sure if the man was actually seeing him or not, or even if he was aware of what was going on around him.

"Alexis?" Severus asked unsure

"Yes."

"What are you looking at?"

"What is to come, what might come and the possibilities in front of us."

Severus was too unnerved to say anything more after t hat. He found the directions of the blood-boiling potion on the bench and set to work. While Alexis stared off into space.

When Severus came to the part in the potion where he normally changed it slightly to make the potion not as effective, he hesitated. He looked over to the still man then back to the potion. He didn't know if he should put in the extra ingredient or not. He took one more look at the other man then reached for the ingredient that would make it less effective.

"Don't."

Alexis voice made Severus jump, dropping the ingredient back to the table with a disturbing, splat.

"It is a test," Alexis said his voice sounding far away, even though the man stood only a few meters away from Severus.

Severus looked over to the other man but found him still looking off into space. Severus quickly finished up the potion. He turned the heat out and turned to Alexis.

"It is finished. What would you like me to do now, my lord?"

A lexis looked at him for the first time the whole night his eyes were clear and intelligent.

"Do not ever call me 'my lord,'" the man said softly. "My name is Alexis Riddle. I am no lord."

"Yes, Alexis." Severus replied. Alexis's green eyes bored into him as if seeing his soul, then he turned looking around the room.

"What do I do now?" Severus asked again.

Alexis glided over to Severus' cauldron looking the potion over. He filled a phia l full then flicked his wrist. The cauldron lifted up and tipped the potion down the drain.

Severus looked on as the evil potion gurgled down the drain with satisfaction, even though he cringed at the sound it made.

"You my go if you wi sh," Alexis whispered.

Very close to Severus but not close enough to make Severus feel trapped.

"I wish to." Severus replied, pushing down the reactions in his body to the closeness of Alexis.

"You may, good-bye Sever us."

"Good-bye Alexis."

Alexis left the room leaving Severus alone staring at the rinsed out cauldron. He sighed and left the building.

Once he arrived back at Hogwarts he reported his meeting to Albus. Who grew more wor ried by Alexis's strange behaviour.

"He acts like some one that has been in Azkaban or under the Cruiatus Curse for a long period of time, then the next minute he is normal." Severus said with a frustrated sigh. "I believe he is more aware of what is going on around him then he wishes us to believe."

"Do you think he is working for or against his father?" Albus asked a thoughtful expression on his face.

"I don't know Albus."

"See if you can get closer to him."

"What if that is the plan I've told you he has tried to come onto me before."

"I'll leave it up to you, but from what you're said he holds all of Voldemort's plans. If we had him we could set Volde mort back and have the upper hand."

"I'll see what I can do."