This is fun, escapist novel set in a world where superpowered people exist and some fight crime. The protagonist, Celia, has two superpowered parents but has no abilities of her own and is trying to live her own life. Unfortunately, the trope of the superhero's loved one-as-hostage is alive and well in this book. In fact, Carrie Vaughn takes all the major superhero tropes and blends them into an entertaining tale that reads fast and fun. From doomsday machines to diabolical villains who monologue their plans, long-lost relatives and heroes at odds with the populace who they have sworn to protect, all the standards are represented here. And yet, Vaughn's storytelling breathes fresh life into the old cliches, building up to a climax that doesn't disappoint. Darn good book. Darn good fun.