The Arctic ice groaned beneath the hull of the USS Talon. Lieutenant Commander Sarah Vance had been tracking a mysterious signal for days—a rhythmic pulse that didn’t match any known vessel. The sonar revealed a shape beneath the ice: a massive, angular structure, half-buried in the seabed.
“It’s a ship,” her ensign whispered. “But it’s not one of ours.”
Sarah ordered a dive team. The ice was thick, but they found a hatch, still sealed, still intact. Inside, the air was cold but breathable. The walls were covered in symbols—not German, not Russian, not anything from this era.
A figur