Collects Detective Comics #1044-1046; Detective Comics 2021 Annual #1.
Arkham Asylum may have been decimated during A-DAY, but its legacy lives on.
Bloody, broken, and beaten…but Batman has a mission.
When the terrorist organization known as THE RED CROWN took control of Mayor Nakano's personal security detail, only the Batman could protect Gotham's highest-ranking city official from certain death! But when the pair is thrust into the sewers below, a much more sinister threat lurks in the darkness. Better look sharp, Batman, because a hundred thousand eggs with a hundred thousand little monsters inside are about to hatch…and they look HUNGRY… And outside of the sewers, the city streets being overtaken by larger, (somehow even more) horrific creatures!