When the murals painted on the walls of her Brooklyn neighborhood start to change and fade in front of her, Sierra Santiago realizes that something strange is going on--then she discovers her Puerto Rican family are shadowshapers and finds herself in a battle with an evil anthropologist for the lives of her family and friends.

A war is brewing among the different Houses, some of Sierra's shadowshapers are still in jail, and the House of Shadow and Light has been getting threatening messages from whisper wraiths, and even though one spy was exposed Sierra is not quite sure who she can trust--but the deal with Death made by one of her ancestors has given her power, and she will need to control it and confront her family's past if she has any hope of saving the future.