Okay so I'm supposed to write a Sherlock Holmes story. It goes "The Incident of the Maniacal Teenager" (Sounds like a odd name i know but there are stranger names like "The Fate of the Lurking Waffle")
I need Ideas please.

sherlock meets harry potter

Explanation: Sherlock is investigating a report of a magic killer so holmes is trying to find an explination where he runs into Harry potter fighting voldemort and then voldemort runs away and holmes teames up with potter to stop him and then they meet voldemorts apprentice who is an evil teenager hence the name manaical teenager.

recent news about two years ago indicates that a polish forestry student by chance unearthed at a depth of about 40cm (16 inches), during digging in a damp polish forest he found a 13-page manuscript into a thermos flask.

greek jew marcel nadjari was a aischwitz slave who witnessed how the nazi's built big death chambers and crematoriums and told how he was forced to escort fellow jews to the gas chambers. he accounts on this manuscript how the nazi's disguised this chambers to look like showers. also, he describes this place as a process of extermination from the chambers to the trains arriving to take the bodies.