Just read.

Sherlock visibly tensed. Then he dropped his gun. No, I don't think you understand, he literally dropped  his gun. It hit the cold floor with a clang  and went off, causing a small hole with cracks to appear in the opposite wall. John was the only one who flinched at the loud sound of the gun. Sherlock's hand was still supported in midair.

You and Jim stood up and with a flick of his wrist there was not a laser on John's chest. You grabbed the right side of Jim's jacket and pulled him forward. You stood slightly on your toes to reach Jim's ear and the sight brought a small smile to Sherlock's lips. You whispered this in Jim's ear, "I.O.U." You pulled back to see the desperate warning look on Jim's face.

You looked at him and said in a severe tone, "Lot's of deals never to be broken, that's the problem playing on the side of the demons. Most people who play on that side, contrary to popular belief, are the ones playing by the rules. I may be on the side of the angels, but don't think for one second that I am one. Now, make mummy happy."

"Oh," Moriarty said with a smirk, a far cry from the sad man from moments ago, "You're the one who upset her."

"Yes, but I was just..." you stepped towards him and whispered so quietly in his that it was barely audible, ".. Playing the game. There's always the Final Problem for me."

You turned to Sherlock who's hand was at his side once more and his gun was back in the holster. Jim walked out, defeated. Once he was out of sight you and Sherlock rushed over to John. Sherlock ripped off the coat and you ripped off the bomb. You both threw each item aside. "Are you okay?" Sherlock asked John. You tried to sink into the background to escape the questioning looks and glares.

"Yeah, I'm... Fine." said John, peering over at you. Sherlock turned to follow John's line of view. He walked up to you and crossed his arms. You became rigid at once and avoided eye contact. "You know," Sherlock began, "For someone so intelligent, I can't say I'm shocked he's your brother." Your eyes shot up to meet the steel gray eyes with a relieved light in them.

You smiled up at the pale detective. "Thanks Sherly." you said. Sherlock's expression suddenly turned into a playful sour expression. John rolled his eyes behind Sherlock's back, but you saw and giggled. "Thanks John." you said sarcastically rolling your own [E/C] eyes. Suddenly a cascade of red lights appeared on Sherlock and John's bodies.

"Sorry guys! I'm soooo changeable! It is a weakness with me. But to be fair to myself, it is my only weakness. You can't be allowed to continue. You just can't. I would try to convince you, but everything I have to say has already crossed your mind."

Suddenly your ears felt like you were underwater. Everything happened in slow motion and you couldn't hear what anyone was saying. Sherlock turned and pointed his gun at Jim then slowly lowered it to the bomb laying on the floor in between them. Jim's eyes widened slightly. Nobody else, not even Sherlock, noticed the accidental gesture, but you could tell Moriarty didn't expect it. You weren't going to kill your brother, or have Sherlock kill him. You stepped forward in front of Sherlock so your body suddenly was thrown into a red tint.

Jim, Sherlock, and John's eyes looked terrified. Your head snapped abruptly to face Jim. Sherlock lowered his gun. "There's only so many really intelligent people in the world, do you really want to kill some of the best? Do you really want to kill me? Could you?" you said narrowing your eyes at your brother, "Remember Jim," your voice lowered to a whisper and you took your time leaving spaces in between your words, "I.O.U."

Jim took a deep, shaky breath. "You know, someday you'll be coming to me for help, and remember you owe me... But what for?" Jim asked, looking mockingly confused. Sherlock and John's confusion looked genuine. "Have you not told them?" Jim asked with a sly smile. You locked your jaw. "My secrets are my own, but they never were with you. You really shouldn't have opened that door or you never would have experienced true horror. Now leave or do what I couldn't do myself."

Jim's face turned white as a sheet. "You win." he breathed and slowly walked out of the pool as the red lights went out one by one.