Librería Samer Atenea
Kálamo Books
Librería Elías (Asturias)
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Three hundred meters beneath the surface, Dr. Eleanor Cross is descending into the Void-Ridge Seismic Basin when the mountain suddenly gives way.A violent collapse traps Eleanor and her expedition team deep underground, burying passages and cutting off communication with the surface. Caleb Ward and Nicholas Harrow are injured beneath fallen rock, Julian Nightingale suffers the effects of a devastating acoustic shock, Isabella Frost loses valuable biological specimens, and the remaining survivors face a rapidly shrinking supply of breathable air.Their situation seems straightforward: escape before the cave becomes their tomb.But the deeper they travel, the more impossible their surroundings become.Julian detects a low-frequency pulse moving through the mountain-something rhythmic and structured rather than the random noise of geological activity. As the survivors push beyond the collapsed shaft, natural limestone gives way to smooth alloy, engineered chambers, mysterious conduits, and enormous mechanical structures buried within the earth.The cave is not simply a cave.It appears to breathe.A vast subterranean system pulses beneath their feet, drawing air and producing rhythmic vibrations that seem to connect the entire mountain. The survivors discover evidence of an underground environment unlike anything they expected, along with strange biological and mechanical phenomena that challenge everything Eleanor understands about geology and the natural world.As oxygen dwindles and the expedition moves deeper into the Assimilation Zone, the boundaries between human beings, machinery, biology, and the mountain itself begin to blur. The group must confront not only physical danger but also the possibility that their descent was never entirely accidental.The people trapped underground are no longer simply trying to find a way out. They are being drawn toward something.And whatever waits at the heart of the mountain may not see them as explorers at all.The Cave That Breathed At Night is a dark subterranean science-fiction thriller combining survival horror, mysterious technology, seismic catastrophe, biological transformation, and psychological suspense. With its claustrophobic tunnels, impossible underground machinery, strange frequencies, and increasingly unsettling discoveries, the novel takes readers on a descent where every deeper step brings them closer to a mystery that may have been breathing beneath the earth long before humanity arrived.