BENEATH THE LOST LEVEL

Hardcover: Vortex Books

Paperback: Publisher (preorder)

eBook: Publisher (preorder)

Paperback and eBook forthcoming, December 2026

Book 4 in The Lost Level series

Brian Keene’s epic weird-fantasy series continues in this thrilling fourth installment!

Charged with another impossible task, with only their wits, weapons, and a group of helpful frog-people to aid them, Aaron and his friends must fight to escape from… Beneath the Lost Level.

After escaping the snake-like Anunnaki and laying waste to their city, Aaron Pace finds that his troubles are far from over. Trapped underground in a cave-in with his companions, Kasheena and Patamoose, the survivors must go deeper to try and find a new way to reach the surface. Little do they know, there’s a whole other world laying in wait.

If being faced with killer robots, dementia-riddled androids, and the last dregs of the civilization of Atlantis wasn’t enough, Aaron and his companions learn that there is an even larger threat looming deeper below—a threat that, if left unchecked, could destroy the Lost Level as they know it.