"Puzzling"
(Enigma 01 Redux: Hadal Immortality)

In 1944, a US submarine sank somewhere in the Pacific. They radioed mayday as the vessel went down, its machines failing and condemning it to the seafloor.

The submarine took no water.

Navy officials were uncertain of the incident's nature. As sailors wailed and screamed through the speakers, words of heat and boiling blood made it clear that there was suffering. Yet the screaming didn't stop. For a full twenty-six hours, communication lines were full of the seamen's twisted gurgles, gasps, and cries. They only ended when an order was sent to cut reception.

It was impossible to estimate a time of death for the submarine operators. Nobody realized they had died already until the first hour had passed. But the echoes still rang.

And the echoes still ring.

Their sources, now little more than melting skeletons, died eighty-one years ago. But if you know where to go, you can hear them for yourself.

Go through the trouble of obtaining a research grant from the Japanese government. It's a difficult task, but when it's done you'll have the keys. Start your own vessel, then descend. Descend.

Descend.

Then listen.

Still alive as when they were born, you will hear the cries of sailors.