Justice League of America — DC Comics
Issue: #163
The Green Arrow returns home to find Anton Allegro waiting for him. Though Allegro is looking for Oliver Queen, he, nonetheless, attacks the Green Arrow. Allegro plays his synthesizer, playing into existence demons of sound. The Green Arrow is beaten into unconsciousness. The Justice League of America interrogate Zatara, For reasons unknown, Zatara cast a spell of forgetfulness upon his own daught...
First appearances: Sindella, Mad Maestro
Creators: Dick Giordano, Julius Schwartz, Ben Oda, Gerry Conway, Rich Buckler, Frank McLaughlin, Jerry Serpe, Dick Dillin
Characters: Batman, Superman, Zatanna, Hal Jordan, Barry Allen, Hawkgirl, Red Tornado, Black Canary, Green Arrow, Zatara, Elongated Man, Sindella, Mad Maestro