The Oneironaut and the Realm of Nightmares (Hardcover) (ISBN-13: 9781662971402)

Kids are vanishing across the city, and only the Dreamhunter can trace the shadows they leave behind. Her gifts let her walk through the secret worlds inside every mind, but even she fears a darkness rising that she can't face alone.

When Crystina's sister disappears, desperation drives her into the Dreamhunter's path. Forced together, the two women descend into the DreamWorld, where nightmares breathe, memories twist into monsters, and truth comes at a price.

To save the missing kids, they must confront an evil force hungrier than anything that walks the Waking World... and survive the Realm of Nightmares before it swallows them whole.