It's a mystery six months in the making: the box that can destroy the Justice League will be opened But first Ollie will have to keep all the villains at bay, including Count Vertigo, Parasite and more Is the Emerald Archer throwing himself into the hero game because of a death wish? Not if Black Canary has anything to sing about it.

It's an all-star lineup including writers Jackson Lanzing, Mairghread Scott and Collin Kelly with artists Matt Clark and Javier Fernandez. Collects issues #39-42 and #48-50.