When Detective Mara Vance investigates a long-abandoned station beneath the city, she discovers more than rusted walls and broken tracks. Drag marks in the water, strange noises echoing through submerged tunnels, and cryptic notes from a missing researcher point to a nightmare waiting below.
As she and young apprentice Lucas Bright descend into the depths, they uncover a horrifying secret: an ancient, intelligent creature has survived decades underground, along with a nest of hatching horrors. The tunnels are alive, and every step brings Mara closer to confronting a predator unlike anything she’s ever faced.
