Crush Depth (Grace Parkowski Thriller)

Eight thousand meters beneath the Atlantic, something ancient is awake… and it’s listening.

When a Russian Akula-class submarine is torn apart in seconds by an unseen predator, the U.S. Navy dispatches an elite recovery team to the Puerto Rico Trench to retrieve the one piece of technology worth more than the boat itself: a stolen quantum processor that can pull secrets from the sea itself.

Grace Parkowski, the brilliant engineer who designed the original American system, is dragged from her civilian life and dropped into a secret undersea habitat perched on the edge of the abyss. Her mission: mate the Russian core to their own network and extract every byte of data before Moscow notices it’s gone.

But the trench has other plans. Every time the quantum array spins up, the water answers. Golden eyes the size of dinner plates watch from the darkness. Sonar contacts the length of city blocks move with impossible intelligence.

And something down there is learning faster than they are.

As the habitat’s lights flicker and the hull begins to sing under pressures that can crush titanium like foil, Grace realizes the terrifying truth: the quantum signals aren’t just noise.

They’re a language.

And the owners of that language have decided humanity has finally come close enough to talk…or to be silenced forever.

In the crushing black where no rescue can reach, one question remains: When the deep looks back at you with prehistoric eyes, do you dare answer?

Perfect for fans of Michael Crichton, Steve Alten’s MEG, and Jeremy Robinson’s Kronos.

Welcome to Crush Depth.

Coming 2026!

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