The Unintentional Collaborator

Dumbledore had been expecting a brash Gryffindor that he could manipulate into the perfect weapon to use against Voldemort. That was not what he got. Instead, the Harry Potter that walked into the Great Hall in September 1991 was an introvert, studious, intelligent and maybe just a little sly. This meant, Dumbledore had to take matters into his own hand. Pre-HP/TMR-Slash