A herbal potion stolen from the Peruvian temple of Cibola bestows the gift of invisibility. Two gangsters use it to rob a bank. One, however, spills the back-to-visibility potion over the loot and is caught, while his partner is now doomed to be invisible for the rest of his life.
Captain Barney joins the hunt for the “sea piper”, a flute-playing phantom who lures ships to their doom on moonlit nights. Barney uncovers the phantom as a hoax, making clever us of sea drifts and abysmal music.
Cover story. First-person narrative.
Script credit from Otto Binder's 1963/1964 listing of his DC credits.