Eris Selwyn has more secrets than most people her age. The main one being that she is related to the powerful Gellert Grindelwald. After Grindelwald's downfall, her family fled to Britain to start a new life. Eris pretty much does as she pleases, even if not everything she does is completely legal. And she has a habit of creating illegal Portkeys for a large fee. She's a lone wolf, until she becomes good friends with a young boy named Sirius Black. With Grindelwald in Nurmengard, a new dark wizard is gaining power and support. Eris doesn't believe in Lord Voldemort's pure-blood mania, but when he tracks her down, so that she can help him achieve his goal of world domination, she realises that she doesn't have a choice in which side of the war she fights on. But when the war starts to impact the one friend she has in the world, she begins to question where her allegiance lies.