Jason Mercer
A University of Washington climate researcher building a file on anomalous biological observations across Arctic waters.
The book / Spoiler-light overview
Across the Arctic, unrelated encounters begin to form a single, terrifying pattern.

Synopsis
When researcher Jason Mercer connects an impossible specimen from northern waters to a growing constellation of anomalies, the evidence begins pointing toward a conclusion no institution is prepared to accept. A U.S. Navy crew tracks a contact that behaves like no known vessel. A Russian submarine hears movement beyond the reach of ordinary life. Scientists begin reopening evolutionary files long considered closed.
What surfaces first is only evidence. What follows is migration.
Four lines of sight
A University of Washington climate researcher building a file on anomalous biological observations across Arctic waters.
An MH-60R Seahawk crew whose dipping sonar tracks a massive biological contact beneath the Bering Sea.
A Defense Intelligence Agency commander connecting witnesses and unexplained reports that keep being classified away.
A veteran Norton Sound fisherman whose failing catch—and impossible specimen—gives Mercer evidence he can identify.
The U.S. edition is available now.
Buy on AmazonListen to Below the Thermocline.
Listen on ElevenReaderContinue into the evidence archive.
Open field records →