Hogwarts, When Dumbledore Knew the Script

Will Evans wakes up to find himself transported to the world of Harry Potter. Good news: he knows the entire plot. Bad news: he knows nothing but the original story. So, Will decides—to cling to Dumbledore's coattails and achieve a life of effortless success! "Professor, Quirrell has a face on the back of his head!" "Professor, the diary has a mind of its own, burn it with Fiendfyre!" "Professor, don't wear that ring, it'll kill people!" Dumbledore: ...? When the greatest wizard holds the script, Voldemort's Horcruxes face their most disastrous failure in history. In their first year, they prematurely eliminate Peter Pettigrew. In their second year...