Sixth Year Switch

Sectumsempra- Harry tries to use the spell on Draco, but it's inexplicably blocked. Draco has something new up his sleeve that changes everything. Both boys end up in the infirmary, and when Harry wakes up, he's just not himself. Sixth and Seventh Year retold with a twist. Slash, Drarry, Harpy, Harry with others. sex and language warnings