Tullus and the Dark City

David C. Cook’s Tullus and the Dark City is a single-issue comic from 1993, written and illustrated entirely by Cook himself. The story follows the title character’s journey into a mysterious, shadowed metropolis, blending adventure with a moral or spiritual undercurrent typical of Cook’s work. As a standalone project from the Christian publisher David C. Cook, it stands as a compact, self-contained entry in the creator’s small but personal comics bibliography.