Tom enters the fray, commanding the basilisk to destroy everything it can. Eventually, Mia, Tom, and Dumbledore prevail–killing Grindelwald and their own traitors, the Lestrange twins. Orion had a more ambiguous reasoning and he turned sides mid battle. He was still denounced as a traitor, though. Tom and Nina had no intentions of allowing him to live when next they crossed paths, despite Nina having fallen in love with Orion and his clear sorrow for betraying her.