So I created this crossover as an assignment that I'm doing for my Popular Lit class on Sherlock Holmes. We had to create an adventure of our own, and my only thought was to combine it with another favourite show OUAT. Just let me know what all you guys think of it. It has to be finished for me to turn it in, but I'm not 100% that I'll upload that specific ending for this once it's written or decide to broaden what happens. Like I said just let me know what you think, and where it might could go. -Layn

-I do not own Sherlock and characters, nor do I own Once Upon a Time and characters.

"Sherlock…Sherlock!" Watson yells trying to figure out what had just happened. Turning around he spies Henry and his two mothers, Regina and Emma, hugging one another seemingly unaware of the current state Holmes is in after the two women kissed. A kiss which was the cause of some sort of pulsing light to shoot out from them across the sleepy town. Sherlock told Watson he could handle this on his own, so he gave him a few days head start before following him across the pond, and apparently he should have come sooner. In the ten minutes that Watson had met these people Sherlock went from being normal to completely unresponsive, so who knows what happened before he arrived or what would have happened had he not decided to come at all.

"What the bloody hell did you people do to him?! I want to know what just happened because you've…you've…broken him or something…" Watson trails off as he turns back to Sherlock still standing there with his mouth agape like a catatonic mental patient.

Watson's shouting pulls the trio out of their little bubble and it's Emma who speaks first. "Well I'm not a hundred percent sure, myself, but I believe that the kiss Regina and I just had was True Love's kiss and it broke a 28-year-old curse. And, if that's true, well, then we just proved Sherlock's theory wrong and that magic does indeed exist."

Before Emma could explain any further and before Watson even think of a reply shouts of, "There she is," and "Kill the Evil Queen," erupt from the unnoticed mob heading towards them. The next thing he knows is that he's surrounded by purple smoke and as the smoke dissipates, he realizes he's no longer standing in front of Granny's Diner, but now the group of five is in someone's mansion. Emma lays Sherlock down on the couch as Henry and Regina spur into action to lock up the house for when the mob comes after them again.

Finally realizing what's just happened, that magic is somehow real like this Emma woman said, Watson collapses in a heap muttering to himself in his confusion. When Regina comes back to the entryway to get Watson away from the door he snaps out of his daze and demands, "Who are you people? What do you want with Sherlock Holmes and me? How the bloody hell did we get here? Just please someone explain what is going on here, what have I missed by not being here?"

"As Emma stated before, it all comes back to magic being real, Dr. Watson. To understand that fact, I need you to come sit in the living room and allow us to explain everything from the beginning from when my son contacted Mr. Holmes to what happened at your arrival. It's better if we start explaining sooner before that mob figures out that we're here," Regina explains calmly hoping that Dr. Watson would follow by example.

He follows hesitantly behind her and takes a seat in one of the armchairs to the right of Sherlock and opposite from the two women and their son, and waits for someone to begin.

"Well," Henry started, "it all began with a letter I sent to Mr. Holmes…"