A/N: Short Introduction, sorry about that.

Prologue
I looked up as Inspector Lestrange entered the sitting room, half-carrying Sherlock Holmes.
"Holmes!" I cried out, leaping from my desk to inspect my friend.
"I didn't break my promise, Watson," mumbled Holmes as Lestrange and I helped him over to the sofa. "Skully made me and injected me with one of his concoctions before I was able to fight my way free."
"Did you hit your head?" I asked, worried by how distorted his words were becoming.
"No," he replied, slurriedly adding, "It's what he gave me that's affecting me so, Watson."
"Did he happen to say what it was he gave you?"
"He referred to it as the ultimate exilir of youth," Holmes replied scathingly, stifling a yawn. "And no, I don't happen to know what he meant by that, Watson."
Unfortunately, we found out all too soon what Doctor Ashley Skully meant by "ultimate exilir of youth"...