Tales of the Mysterious Traveler #10

In "Who Knows?", trumpeter Johnny Blue ventures beyond the limits of sound, chasing musical notes no one has ever heard—only to vanish after discovering something far stranger than he ever imagined. Written by Joe Gill and brought to life with eerie precision by Steve Ditko, whose pencils and inks define the cover and interior, this 1958 Charlton tale blends jazz, mystery, and the unexplained in a haunting, offbeat story.