Hollow Hills House is the breathtaking first installment in a new fantasy adventure series by Cynthia Upchurch. When twins Gracie and Molly Knight move into a strange old mansion, nothing prepares them for the humming four-poster bed... or the glowing portal beneath it.

Transported into Noxmere, a realm of three moons, living forests, unicorn guardians, shifting cities, and ancient oaths, the girls learn they were chosen, not by accident, but by destiny. Alongside Ezra, Daniel, and a group of powerful warriors, the sisters discover abilities they never knew they had: Molly can summon shields made of pure force, and Gracie can heal wounds with a single touch.

But Noxmere is unraveling. Shadow creatures stalk the borders, ancient promises are breaking, and a forgotten war is waking again. To save both worlds, the twins must earn the trust of three divided moon realms, each with its own allegiance, anger, and magic.

Filled with mystery, heart, courage, and wonder, Hollow Hills House invites readers into a world where ordinary children become extraordinary heroes, where every choice matters, and where magic waits beneath the bed. Perfect for fans of Narnia, Keeper of the Lost Cities, and Amari and the Night Brothers.