When Will Burrows and his friend Chester embark on a quest to find Will's archaeologist father, who has inexplicably disappeared, they are led to a labyrinthine world underneath London, full of sinister inhabitants with evil intentions toward "Topsoilers" like Will and his father.

In the follow-up to "Deeper," Will and Chester are tumbling through the subterranean Pore with the evil Rebecca twins in hot pursuit, both toting phials of the lethal Dominion virus. When, where, will they ever land?! Illustrations. As fourteen-year-old archaeologist Will and his friends plummet down a subterranean pore, they face deadly creatures and discover a strange fungal shelf, which not only reveals artifacts from ancient civilizations, but...