THE RECKONER'S CHART

THEY SEALED THE VESSEL. THEY CAME BACK FROM THE DEEP. AND SOMETHING ANSWERED.

Eight months after the Korolev, Mara Solis is in Bergen reading a dead woman's notebooks. The dead woman is Dr. Irina Strand-marine biologist, Soviet Academy of Sciences, missing since 1989-and her notebooks contain the only complete technical framework for what Mara went to 3,247 meters to stop. The framework is an equation. The equation describes a frequency. The frequency has a name: N-delta. The threshold that is becoming.

The MV Reckoner was found adrift in the South Atlantic with seven crew members recovered. All physically healthy. All speaking in the same voice. And in the hold: a sphere. Not a cylinder with a lid you can turn. A sphere with no seam. No opening. Nothing to close-because the sphere doesn't collect. It broadcasts. And it has been broadcasting into Petrov for eight months.

Pavel Petrov, who jumped off the Korolev into four-degree water rather than go through the hatch. Who came back from the deep marked, tuned, the frequency in his bones every time the sea goes quiet. The sphere didn't take him. It built him. Into an instrument it has no idea he's going to use against it.

They sail south to Bouvet Island-the most remote land on Earth-with an archaeologist, a geologist, a rescue specialist, and a man whose family has been managing this problem for seventy years without telling anyone they were doing it. Two vessels in the hold. An eight-second window to close both simultaneously. And below the shelf at 3,247 meters, in the canyon that is not a geological feature but a mouth, something six kilometers wide that has been waiting longer than the ocean has been the ocean.

On the way back up, the bioluminescent message arrives from 8,400 meters. Seven marks. The translation: arrival noted. The instruments are sufficient. Many cycles accumulated. Ready.

Forty-seven sites on a global map. Three red circles. And a man in Reykjavík who has been to the shelf twice and says the second time was different and what he knows changes the timeline for what ready means.

The Reckoner's Chart is the complete second novel in the Dead Reckoning series-a full-length standalone with its own beginning, middle, and devastating end, and a series thread that will not let you stop at two.

Perfect for fans of The Last Voyage of the Demeter, The Troop, Mexican Gothic, The Deep by Nick Cutter, and Annihilation by Jeff VanderMeer.

The asking is the instrument. The instrument can be learned. And whatever is at 8,400 meters has decided that the learning is done.