Adam Gnade's second novel, Caveworld, is a howl of desperation as its characters fight to find love and meaning in a society with which they feel out of step. Richly encyclopedic and set in the twin border towns of Tijuana and San Diego, the book tells two love stories separated by a gulf of twenty years. Caveworld is made up of the various events (both subtle and seismic) that change lives in an instant.