Superman et Batman et Robin #6

In "Batman, l'étrange génie," a 1969 adventure from Sage - Sagédition, Supergirl finds herself baffled when Hilda Powell, the Stanhope librarian, publishes a best-selling book detailing her secret identity with uncanny precision—information no one outside her circle could know. Written by Leo Dorfman and illustrated by Kurt Schaffenberger, this issue blends mystery and superhero intrigue with a cover by Kurt Schaffenberger, capturing the era’s distinctive flair.