This is like reading Sherlock Holmes in wizarding style! Only Watson and the violin play were missing! You actually did manage to write Holmes!Harry persuing a Moriarty!Snape! And the scene at the waterfall is really hot!
“Eat? Rest?” Harry exclaimed. His eyes lit up with a mischievous flare. “Not now, my friend. The game is still afoot!” I hope this sentence means there's more coming...