Sea Devils #25

Danger lurks beneath the waves in Sea Devils #25, as Howard Purcell's cover plunges us straight into the chaos of "Operation Black Gold" — a titanic battle for undersea oil where the team of divers scatter frantically from enormous mine-rigged crocodiles snapping at them with terrifying jaws. The cover's urgent warning — "Those giant crocs are booby-trapped with mines!" — sets a pulse-quickening tone for whatever menaces writer Bob Haney has dreamed up in the depths. A fine slice of mid-1960s DC adventure, with Purcell's dynamic underwater composition making this October 1965 issue hard to put down before you've even opened the cover.