So far, Eve's summer vacation has been uneventful, but when her grandparents—traveling all the way from the monster world known as Gravesville—appear at her doorstep, she learns that the URNS Director has gone missing. Worse, a new director, bent on destroying humans, has taken over URNS. Eve and her family are no longer safe in the human world, and as they race to escape this new threat, Eve stumbles into a trap, which forces her back to Gravesville along with her family and friends. But once there, everything goes adorably wrong, and her best chance to get out of this mess is to seek out The Book of Shivers and the elusive author Sedrick Creach—the only creature who knows the secrets of the Nightmare Books. Unfortunately for Eve, searching for Sedrick and the next book in the series will reveal uncomfortable details about her own murky past. Once again, Eve and her friends find themselves on an incredible adventure—one that involves underground battles with bloodthirsty creatures, a lightning-fueled train, and some unexpected new allies. Hilarious and bone-chilling, this third book continues the story of an unlikely hero trying to save not one, but two worlds … This time around, though, Eve's not sure she can even save herself.