Get Real, Sherlock

This is 100% a ridiculous crack fic in which Sherlock and Moriarty have to work together across multiple timelines/worlds in order to locate John. They meet many characters from other stories along their journey, and further ridiculousness ensues.

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Sherlock stood on the roof of Bart's hospital with a gun in his hands. The cold wind whipped around the piece making it feel icy and frozen in his palm, but he ignored the numbness - Moriarty was in front of him now, and he wasn't going to let him slip through his fingers another time. He knew that Moriarty was plotting to kill him and, most likely, everyone he cared about - but that wasn't going to happen. Sherlock had a plan like he always did. They looked into each-other's eyes cooly and without emotion, the tension was building, when suddenly Moriarty screamed.

"LOOK!!" He shouted, pointing up towards the sky behind Sherlock.

Sherlock was taken by such surprise that he looked up and Moriarty quickly disarmed him.

"Ok let's be real here Sherly, I'm gonna die here, you're gonna "fake die" here, so why don't we just call it a day?" He swung the gun around his pinkie finger.