Detective Comics — DC Comics
Issue: #351
Last valuation update: 2025-09-26
Batman and Robin battle the Cluemaster; meanwhile, Aunt Harriet discovers the secret entrance to the Batcave. The Elongated Man wants to donate his old costume to Central City’s Flash Museum, but it’s been stolen. "The Cluemaster's Topsy-Turvy Crimes!"While trying to keep their secret identities from Aunt Harriet after she stumbles onto the secret passage to the Batcave, Batman and Robin also have...
First appearances: Cluemaster
Creators: Carmine Infantino, Julius Schwartz, Gardner Fox, Murphy Anderson, Sid Greene
Characters: Batman, Dick Grayson, Barry Allen, Elongated Man, Cluemaster, Aunt Harriet