The Riddle of The Riddler
Infinite Origins: Detective Comics vol. 1 #140 & #142Continuity Crisis: Batman vol.1 #171 and #179; Detective Comics vol.1 #362, #364, #373, & #377Outside The Panel: Batman ‘66 (S1 Ep 1-2, 11-12, 23-24, 31-32; S2 Ep 45-46; S3 Ep 2); Batman: The Movie