Detective Comics #601 1989

Detective Comics #601, published in June 1989, features "Tulpa, Part One: Monster Maker." Batman pursues a reckless driver who inexplicably turns to dust. This mystery unfolds to reveal Tenzin Wyatt, a man utilizing ancient Tibetan magic to create 'tulpas'—magical duplicates—to steal money and settle debts with a loan shark. This issue is notable for introducing both Tenzin Wyatt and Rafe Kellogg, and marks the beginning of Alan Grant's solo writing tenure on the series, pushing Batman into supernatural territory.