Men of Mystery Comics #18

In "The Plot to Take Alaska," Black Ace finds himself aboard a mysterious submarine, drawn in by a shadowy assignment that quickly turns dangerous. As the vessel is torpedoed and sinks to the ocean floor, he must keep the crew alive with calm resolve—breathing shallowly, waiting for rescue—while the true nature of the mission remains buried beneath the waves.

In "null," freshly released from prison, the enigmatic Topaz reinvents himself as a teacher, opening a school with a twisted curriculum aimed at corrupting his more vulnerable colleagues—only to see if their criminal ambitions will finally earn him the rewards he craves.