1. Sherlock is bored

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'How in the world did you do this?'

Sherlock just shrugged his shoulders, without facing John or 221B's kitchen.

'Sherlock, the kitchen is all... blue.'

Sherlock rolled his eyes at the statement. Might have been a touch unfair, John felt. Although the saturated colour was obvious – covering the back wall, the cabinets, the fridge and even part of the ceiling – it was quite fazing.

Everything was blue. Sparkling edgy crystals of some chemical substance coated the usual kitchen landscape.

'How...' John collected himself, focusing by pinching the bridge of his nose. 'Sherlock, how did you do it?'

'With sulphuric acid.'

That could never be a good answer.

'With a strong acid. Why am I not surprised?'

'Quite diluted, John, not to worry. It has completely reacted with the copper by now.'

John turned on his heels, looking over his shoulder to where the refrigerator was, now encompassed in a small crystals fortress. He was very sure the refrigerator hadn't been made of copper.

'I worked the copper into every surface first, John. These are copper sulphate crystals, John. Do keep up', Sherlock read his mind, his greenish eyes very bright. He was amused.

An image of Sherlock propped on a stool spraying the walls and everything in front of it with diluted sulphuric acid popped in John's mind.

'Why would you...' he was lost for words.

Sherlock smiled, as in victory.

'I was bored, John. You should come more often.'

John glanced at the kitchen walls behind him again. Right. Bored.

They both smiled. When it came down to it, John was probably just as crazy as Sherlock; how else would he be so accepting? John found himself relaxed, amused, entailed even.

'Any chance for other colours next time, Sherlock?'

'Actually, John, this is a very lengthy process. You really should drop by more often.'

'You're blackmailing me with the state of your kitchen.'

'Well, you're the one who called by bluff.'

'Me? How? I didn't even know your plans!' John was stunned.

'Then you should have come over that time, a month ago', Sherlock maintained, proudly. John lost his smile.

'Mary needed me, Sherlock. I explained it to you.'

The consulting detective dismissed it with a vague gesture. 'I understand. I got bored anyway. It's okay, John.'

They both stared at the deep blue crystals that surrounded them like the walls of a cave. It still felt too fantastically impossible of a reality to John. Yet, it felt oddly placed at 221B Baker Street.

'Are you keeping it?'

Sherlock stretched his arm to shut off the overhead light in the kitchen. Only the cell phone on the table provided enough glow to light up the crystals and bounce off shimmering sparkles off the edges. It looked as the whole universe had been compressed to fit the back wall of the kitchen.

'It's... amazing, Sherlock', John admitted easily.

'Well, I'm a graduate chemist, John.'

They stood there, side by side, mesmerized by the tranquil landscape until John realized:

'Mrs H is going to have a fit. You're doomed, Sherlock.'

He just smirked. He wasn't going to be bored for a while.

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Disclaimer: I own none of the characters or their previous feats.