the waters west of the Nansei Shoto. Second war patrol, November – December 1944 At the end of the month, Sea Devil entered the East China Sea and turned toward the Kyūshū coast. On 1 December, just prior to midnight, she made radar contact with a distant convoy and commenced running with the state-five sea on four engines to gain position. At 02:39 on 2 December, she changed course to close the convoy. A minute later, she took a wave over the bridge which knocked the starboard lookout onto the bridge deck; flooded the main induction and both engine rooms to the lower deck plates; and sent water through the supply line into the after battery compartment, the crew's mess, and the radio shack. A solid stream came into the control room via the conning tower. But, other than numerous electrical grounds, no damage was sustained. By 03:20, Sea Devil was ahead and off the port track of the convoy. The radar showed 11 definite targets and indicated the presence of others. Weather and visibility, however, worked against a night surface attack. At 03:22, a floating naval mine was sighted less than off the port bow. Sea Devil swung right with full rudder. Ten minutes later, she submerged and commenced her approach, heading for the port flank of the convoy. By 04:00, the moon had clouded over. Periscope observations became progressively more difficult. At 04:13, an escort, pinging, passed Sea Devil close aboard. Sound conditions were also poor. At 04:14 Sea Devil commenced firing. Four Mark-18 torpedoes headed for a medium-sized freighter, but all missed. At 04:24, she fired tubes five and six at a large ship away. Forty seconds later, the torpedoes hit, throwing a huge column of debris into the air. The stricken ship was troopship Hawaii Maru with some 2,000 soldiers on board. At 04:25, Sea Devil swung right to avoid an escort ahead of the ships in the center column. By 04:27, water was over the deck of the Hawaii Maru. There were no survivors. At 04:28, another escort passed Sea Devil. A minute later, Sea Devil launched four torpedoes from her stern tubes at a large passenger ship away, the Akikawa Maru. A look around through the periscope then revealed a larger freighter in the center column less than away and headed directly for the submarine. Sea Devil went deep. At 04:30, she was jolted