Justice League of America, Vol. 1

Returning home, Green Arrow is attacked by a musician who conjours creatures from his music which battle Arrow. In the satellite, the League speak with Zatara to find out why he has been blocking his daughter Zatanna's memory. Th discussion is interrupted by Black Canary calling for assistance for Green Arrow. At a nearby concert hall, Arrow's attacker, Allegro, uses his music to wreak revenge upon a composer who had previously scorned his music. A recovered Arrow tells the League of Allegro and how years before Arrow had inadvertently deafened the musician and became another in a list of people against whom Allegro wished revenge. Tracking his music, the League attack but are defeated by the creatures he conjures. Meanwhile aboard the satellite Zatanna uses her magic to reveal the truth about her mother and open a portal to the world where, unknown to Zatara, she still lived.