Dreadnought

At the beginning of Year Six, Harry returns to Hogwarts, escaping the pain of his loss by withdrawing into himself. As he is recovering from his self-imposed isolation, he begins Occlumency and Legilimency lessons, which he is rather good at. He and his friends soon become entangled in the dual roles Snape has as both Order member and Death Eater, resulting in needing to play along with some rather uncomfortable ruses for the benefit of the Slytherin students and even Voldemort himself. Harry finds that when he needs to really talk to someone about his twisted life, he finds an understanding ear in Ginny.``(HP/SS, HP/GW)

Harry is in sixth year and having a very hard time keeping Voldemort out of his head. The situation becomes bad enough, even with additional Occlumency lessons, that eventually, drastic action has to be taken to protect him and everyone else in the school. Meanwhile, Harry’s frequent visits to the dungeon don’t go unobserved and a case of mistaken understanding snowballs out of control. Harry discovers that Voldemort is holding something over Snape’s head, something Harry is determined to set right. While doing so, he and Hermione discover dangerous things about the nature of magic itself. (R for a few slashy situations)