ABYSS

Twenty-three years before the Odyssey descended into the Pacific, Adrian Kane heard his name spoken by a machine that had no power.

At thirty-one, Kane commanded the experimental deep-submergence vessel Nereus. She was small, ugly, overbuilt, and capable of reaching places where sunlight had never existed. Seven people were aboard that night, and two divers were outside the hull when the first signal arrived.

It repeated every seventeen seconds.

A low tone. A burst of static. Then numbers.

"Two, three, five, seven, eleven," the sonar officer said. "Prime numbers."

Kane leaned toward the hydrophone display. "Source?"

"Below us."

"There's nothing below us."

The trench map showed a featureless slope dropping into blackness. No beacon. No research station. No known geological instrument.

The signal came again.

Seventeen seconds.

Then the Nereus lost power.

Every screen went black at once. Pumps stopped. Fans died. The cabin became so quiet Kane could hear the crew breathing.

"Emergency batteries."

"Not responding."

"Ballast release."

"Dead."

Nereus began to slip deeper.

Surface command came through on the acoustic backup, broken and faint. They ordered Kane to abort, release the emergency ascent weights manually, and leave the two divers.

Kane looked through the forward viewport. Their helmet lamps were still visible outside, two white stars in the darkness.

"Negative," he said.

The voice from the surface hardened. "Commander Kane, you are ordered to ascend."

"We have two people outside."

"You have five people inside."

Kane knew the arithmetic. He also knew what it meant.

"Bring them home."

The crew worked in darkness. Hand valves were opened. A mechanical line was thrown. One diver reached the lock. The second had been knocked against the hull and was barely conscious.

Nereus kept dropping through the dark.

Then blue light appeared beneath them.

Not bioluminescence. Not lava. Not any natural phenomenon Kane had ever seen. Lines formed under the seabed, impossibly straight, spreading outward in geometric patterns. A circle. Six radiating paths. And at the center, the outline of a human hand.

Kane forgot to breathe.

The second diver reached the lock.

At that exact moment the dead hydrophone clicked.

A woman's voice spoke from the powerless speaker.

"Adrian."

Kane stared at it.

Then:

"Kane."

Every system aboard Nereus surged back to life.

The emergency weights released. Thrusters restarted. Pumps screamed. The submarine rose.

All seven returned alive.

The Navy investigation lasted six months. Eleven minutes of Nereus data were missing. Kane's refusal to obey the abort order became the center of the report. His career survived, but the incident followed him for the next twenty-three years.

He told almost no one about the voice.

Aboard the surface research ship, however, oceanographer Dr. Elias Ward had recorded something else at that exact moment.

A second transmission.

Numbers. Symbols. Coordinates.

And a sequence that began:

3 - 1 - 4 - 1 - 5 - 9.

Ward spent the rest of his life trying to understand it.

Three days before his death, he sent everything to one man: billionaire engineer Alexander Voss.

The message attached to the files contained only seven words.

THE DOOR HAS ALREADY CHOSEN ITS FIRST.