Batman 317 (DC, 1979)
Cover art by Dick Giordano. "The 1,001 Clue Caper or Why Did the Riddler Cross the Road?", script by Len Wein, pencils by Irv Novick, inks by Frank McLaughlin
Batman and Robin try to piece together the puzzling mystery hidden within a book of 1,001 riddles autographed by the Riddler.