The Murtlap Thief and the Half-Blood Prince

This is a continuation of the story began in The Murtlap Thief, but it can be read stand-alone as well. This is the story of sixth year, and Snape is attempting to get guardianship of Harry after they have developed a level of trust in the previous book. AU but with a lot of canon compliance. Warnings: Sirius is alive, story contains parental spanking. No slash, no pairings.