"Spine-chilling and creepy!" --Max Brallier, #1 New York Times bestselling author of The Last Kids on Earth, on Escape From Grimstone Manor (Monsterious, Book 1)

When their school wins a state science competition, Rowan, Tinker, and Amari earn a dream trip to Earth Two, a biodome research lab deep in the desert, which is sealed off from the outside world. What could be cooler?

But soon, strange things begin to happen. In the dome's swamp ecosystem, the kids discover a creature unknown to science--though the adults don't believe them. Then a scientist is mysteriously attacked and Earth Two's security and life-support systems fail, trapping everyone inside.

As oxygen runs low, a terrifying monster emerges from the shadows and begins to hunt. Now the kids must find a way to escape . . . before the biodome becomes their tomb.