Book One of the Tethys Below Horizons

ABOVE, THE WORLD IS DYING. BELOW, SOMETHING IS WAKING.As a deadly pandemic tears across the surface, humanity's last hope descends into the abyss.Deep beneath the Atlantic, Tethys was built to save mankind - a self-sustaining underwater colony designed to survive the collapse above. Safe from infection. Safe from war. Safe from extinction.But the ocean was never empty.Strange signals echo through the dome walls. People begin to change. Secret experiments spiral out of control. And somewhere in the crushing darkness beyond the colony, something ancient has started to stir.Ellis Marjorybenks, a grounded systems engineer haunted by past mistakes, and Dr. Vika Sorensen, a geneticist uncovering terrifying new patterns in human evolution, race to uncover the truth before Tethys becomes the birthplace of something no longer human.Because the deeper they go, the clearer it becomes: The abyss is not silent. It is listening.We went to the ocean for salvation. We cracked open something else.