Harry expects the summer after Sirius' death to be the worse ever. To his surprise, Dudley has made huge changes in his own life, which leads to improvement in Harry's. The Goblin Nation turns into an ally and Harry meets a special girl. He sees an unexpected path forward to defeat Voldemort. Who knew the Power he Knows Not was marrying a muggle?

When Harry gets his letter, Arcturus Black is still alive. Lord Black has a plan to save his family.