The moon is a dangerous beauty, but Jit, Gilly, and the rest of the new world settlers are proving to be its match. They've built incredible, unique structures to keep them safe, they are supported by a dynamic scientific team, and friendships are starting to blossom. Unfortunately, not all is what it seems. A group of explorers, known as the Seekers, has made a profound discovery, lurking just under the surface of the moon, that could change the course of history-and our notions of time itself. As the strange secrets of what they've uncovered begin to unfold, questions arise faster than they can be answered, and a menace appears that could shake the fragile ecosystem of New Earth to its core. Unless Jit and Gilly can unravel the mysteries of what lies beneath the regolith, the colonists and all of humanity may be faced with extinction.