A/N：With finals coming up in a few days I know I shouldn't be writting, but it had been such a long time since I last wrote I just couldn't resist, I hope this chapter makes sense though, I am starting to get into the main story, it won't be long I promise! n(*≧▽≦*)n now enjoy

Chapter 7: about the song

John signed and took over the dog headed safe Sherlock handed him.

"Only one chance left, are you sure?"

Before putting his hands on the dog head, John asked one last time.

"No problem, John. I already checked the whole safe with the scanner, it's not explosive, no flammable liquid, all it has is this puzzle and its stability."

John: "Maybe it has some other weird system?"

"And you think I won't know about this weird system if it has one?" Sherlock grabbed John's hand and put it on top of the dog. "John, repeat once again what you did this morning."

Sherlock crossed his hands, and stared at John.

John was hesitating; he felt he shouldn't use this one last chance, it felt wrong. Maybe Mycroft should give it a try.

Sherlock had no choice but to give John his speculations just to persuade him. "Even if Mycroft did come, it will still result in failure. I experimented, John's body temperature is higher than a normal person by 2 degrees, and however I and Mrs. Hudson even Mycroft all belong to the cold side. This safe is covered with a material that's similar to bone, but it's actually a temperature senser, people with a low body temperature will have no effect on it no matter what they do. So…" Sherlock took a deep breath, "Feel it up, John."

Feel it up? John complained silently at Sherlock's choice of words. John closed his eyes trying to recall, then treated it like a real dog, patted its head and scratched its chin. He smiled gently and murmured, "Good boy!"

The red light that emitted from the eye socket of the dog headed safe changed from red to green; the dog opened its mouth wide, and finally giving up the treasure it had kept for so long.

"Oh it has voice control too! Good job John!"

Like a little child with his new toy, Sherlock couldn't wait one more second to try the treasure he got out of the safe.

"Another mystery to be solved, this is so fascinating."

Sherlock studied the box he got out of the safe, it's a rubic's cube, the squares equally divided on the surface all had different symbols and words printed.

"Rubic's cube? Isn't this too easy, Sherlock?" John looked at the cube, wanting to laugh, even John himself can solve it easy.

"No, John, this is not the type of rubic's for young children. It's a coded lock."

Sherlock placed the lock under the scanner, the screen instantly showed its complicated inside structure.

"This should be a bomb, if the wrong square is moved will lead to an explosion." Sherlock pointed to the centre which had been marked with a skull on the monitor and said to John.

John struggled to find a way out in the complicated design of the lock, he squirted his eyes trying to find a clue, but of course he gave up.

"Oh this is more complicated than human blood vessels, Sherlock."

John decided to that it's time to enjoy his dinner, he's starving.

"John, if blood vessels are the limited to your intelligence, then how unfortunate a brain you have." Sherlock had the spare mind to answer John's statement even while he studied the design with his magnifying glass.

John choked on Sherlock's words, he mumbled, "Can't help it, I'm John Watson, not Sherlock Holmes."

Holding his knife in hand, Johns started to enjoy his beautiful food, while watching Sherlock basically sticking his face on the screen.

Sherlock is working very hard, but who does that thing belong to?

That's right! Sherlock hadn't told him who that damn safe belongs to! For God's sake, what if it's another one of those troublesome things!

Can the officially 'dead' Sherlock die for a second time?

"Sherlock, you still haven't told me who that safe belongs to!" John shouted at Sherlock angrily completely ignoring the fact that he still had food in his mouth.

Sherlock simply waved him off.

"Sherlock!" John strode over to Sherlock, forcefully turned him around, and asked again word by word: "Whose safe is this!"

Sherlock attempted to move his eyes back to the screen, choosing to ignore John's obvious anger.

They stared at each other for 5 minutes.

John finally gave up and took his hands away from Sherlock. Sherlock cheerfully dived for the screen, ready to continue his study of the secret lock, however only one look, and the screen went black.

Sherlock stood up to check for the problem, only to see John looking at his with the plug in his hand.

So looks like John pulled the plug out of anger.

Luckily he didn't pull the switch to the whole power supply.

Sherlock saw that John is actually angry, he laid his hands on his knees, sat by the dinner table with his back straight.

"Sherlock, don't give me that 'I'm a good boy' look, this time I won't let you escape my question again!"

John held the plug tight in his hand, and pulled a chair to sit in front of Sherlock.

"Now, one on one answer, no lying, don't try to fool me. If you fool me, don't you ever want to do any more experiments in 221B."

Sherlock nodded, expressing his understanding.

"Last time I asked you, during the time of your 'death' where did you go? Is that how you obtained this safe?"

Sherlock nodded.

"Where did you go?"

Sherlock nodded.

"I want an answer."

Sherlock nodded.

John pressed his temples very hard, trying his best to stay calm: "Sherlock, no matter what you are trying to hide, this time you must tell me, the truth! Jesus! Do you really want to jump off a building for the second time and really lying in a grave before telling me?"

"This is dangerous, John." Sherlock told him very seriously, "Since that case last time, I think I should keep some distance…between us."

Sherlock scrubbed his hair out of annoyance, "Mycroft said, I need to have some self awareness. Uh, what I think is interesting however may not seem that interesting to most normal people."

Sherlock remembered the period when he was resting in bed, the file Mycroft sent him, it listed in detail all the dangerous personae Moriarty had placed around John, Mrs. Hudson and Lestrade.

Even if Sherlock he himself is one that can put danger out of his mind, that doesn't mean he doesn't care about the safety of the people he regard as friends.

So he chose to take Mycroft's advice, keep silent about his own 'death', then went to look for Moriarty's remaining confederates, until he discovered that every single thread points to London.

After a deep discussion with Mycroft, he appeared in front of John.

John stared at Sherlock in shock after hearing what he had just said

In the next second, he made a reaction to Sherlock's words. He pulled Sherlock out of his chair, pulled him to the desk in the lounge, opened the draw, took out something and put it into Sherlock's hand, and said to him, "What is this?"

Sherlock opened the box in his hand, had a look and chucked it back at John, "Victoria Cross, highest military decoration of the British Army, since its introduction in 1856 only 1354 people had received it."

John: "So please tell me where you had gone."

Sherlock: "John, even if you are a recipient of the cross, it doesn't mean anything, this is no longer the battlefield, John."

John started at Sherlock's eyes, serious: "Sherlock, look, I came back from the battlefield, and received the Cross of the highest decoration. Is there any place other than the battlefield that places more threat on life than the battlefield? None. I just want to tell you, no matter what trouble you got yourself into, even if I'm not your friend, as a soldier, I will protect you. Let alone you are my single best friend."

"John, I…"Sherlock wanted to say something only to be cut short by John: "If you don't agree to what I had just said, I will get Mrs. Hudson, I'm sure she'll be able to convince you with her chatters."

Sherlock looked at John, looked at the expression in his eyes, it had something in there that says nothing will be able to crush his determination.

Sherlock chose to surrender, he doesn't want Mrs. Hudson to come up, once everyday of Mrs. Hudson's chatter is his limit. Today's chance had already been used.

"Alright, John. I'll tell you what you want to know.

"After three days rest, I went after Moriarty's partners." After gaining permission from John, Sherlock held the lock in his hand, telling his story while studying it.

"Then the result?" John asked.

"I found this safe in one of Moriarty's secret base in America. After losing their leader, the remaining confederates are like sand." Sherlock consciously skipped the dangerous details that occurred in the middle.

"Like sand? So they had all been caught?"

"…Most of them."

"What does that pause mean?" John's intuition is tell him that Sherlock is hiding something from him.

Sherlock raised an eyebrow, not surprised that John will ask him. "Alright, the only trouble is that I don't know how many confederates Moriarty actually have."

"You don't know? That's impossible, there should be some sort of list shouldn't there?"

"None." Sherlock replied a single word.

John was surprised at this fact, "None!"

"Maybe there once was one. The lastest news from Mycroft was how many people there are in their organization, only Moriarty and his assistant knows."

"Where is his assistant then?"

Sherlock didn't answer this question, he held up the lock instead. John was suddenly enlightened, "That's from the assistant?"

"Yes, after I finally caught his trace, he left me this safe. And it's a dog head, I wonder if he's mocking me saying that I'm like a police dog sniffing after him not letting go."

Sherlock looked down on the safe, his lips curving into a scorn, "but I will solve this very soon, and catch him."

"I believe you." After that, John plugged the scanner back on.

Running towards the dinner table turned laboratory table, Sherlock returned to John a slight smile, "I believe in myself more than you do me."

John picked up the cold noodles beside him and started to eat.

After dinner, he sat in front of his desk and started to write in his blog, carefully noting down everything that happened at work today. He didn't mention a single word about Sherlock.

For how many night had he lived like this.

Sherlock forcibly occupying the kitchen, using it as his laboratory, doing experiments.

John sitting by his desk, writing his blog, and sometimes teasing Sherlock's ignorant "common sense"

An only nursery rhyme started to play.

"London Bridge is falling down, falling down, falling down. London Bridge is falling down, my fair lady. Build it up with iron bars, iron bars, iron bars. My fair lady."

This nursery rhyme is almost a must learn of every single English person in their childhood.

John looked at Sherlock.

Sherlock is holding in his hand a little music box, the song came from it.

"You opened the lock, Sherlock." John felt happy for his friend, solving a complicated problem in such little time. Maybe for Sherlock this couldn't even be counted as a 'problem'.

However there is not a trace of joy on Sherlock's face.

"John, can you contact Lestrade? I think this time Lestrade will be very thankful that I'm still 'alive'."

A/N: See you next chapter!