Forever Etched in Skin

Summary: AU fifth-year. Professor McGonagall sees the scars on the back of Harry's hand and questions him about it. Professors Snape and Dumbledore may also make an appearance. Snape is a bit OOC, and Harry is a little more mature than usual. Rated T for mild language and repeated mentions of a magical weapon that slices hands open, as well as a description of the cuts on the back