“Designated Aquila Five, she departed Bordeaux on June 16, 1943, bound for Singapore with a cargo of mercury, steel, and aluminum bars. Radio contact was lost a few days later, and it was presumed she was sunk somewhere near the Azores.”

He skipped ahead to the last page. “My Italian is deplorable, but I read the last entry as November 12, 1943.”

“Nearly five months later,” Dirk said. “Something doesn’t figure.”

“I have the answer, I hope, right here.” Summer pulled out a sheaf of printed pages. “I had Hiram scan the logbook into his computer system. He claimed it was child’s play to translate it into English and gave me the output right before we left.”

She began passing the pages around the table, letting Dirk and Perlmutter devour them like a pair of hungry coyotes.

“Here we go,” Dirk said. “It says here that they were spotted and attacked by two aircraft in the Bay of Biscayne shortly after leaving port but safely eluded them. Their radio mast was damaged, which prevented them from communicating with central command.”

Via the journal, they followed the Barbarigo’s voyage around the Cape of Good Hope and across the Indian Ocean. The submarine off-loaded its cargo in Singapore and then was diverted to a small Malaysian port near Kuala Lumpur.

“‘On 23 September, we took on 130 tons of oxidized ore called Red Death by the locals,’” Summer read. “‘A German scientist named Steiner oversaw the loading and joined the crew for the return voyage.’”

“The first officer later wrote that Steiner stayed holed up in his cabin with a stack of physics books for the rest of the trip,” Dirk said.

“Red Death?” Perlmutter said. “I wonder if it is something like Edgar Allan Poe’s plague of the same name. I’ll have to take a look at that—and this fellow Steiner. Certainly a curious cargo.”

The trio flipped through several weeks of entries describing the submarine’s return across the Indian Ocean. On the ninth of November, the handwriting turned hurried, and the pages showed saltwater stains.

“This is where they got into trouble, while off the coast of South Africa,” Perlmutter said. He read aloud a terse description of the Barbarigo diving to avoid a nighttime air attack. After eluding several bombing runs, the crew believed they had escaped the attack—only to discover that the sub’s propeller had been disabled or blown off entirely.