Superhero TJ Guiterrez's supervillain ex just busted out of jail and is probably headed straight for their kids, complicating TJ's budding romance with Amber, the nanny the Superheroes Union sent to take care of her kids. Diaz clearly has great love for the superhero genre, while offering a lot of things it doesn't usually consider: Bisexual Latina superheroes! Unionization! Childcare benefits! The recognition of the constraints of childcare on women! This is a novella rather than a novel and could probably have used some expansion, but it's fun. I hope there's a sequel about TJ's friend Vincy aka The Invincible Woman.