Sepulkore is activated! The entire Ghost Sector has been imprisoned and enslaved as a new realm of Apokolips, with Darkseid as its supreme ruler! Returned to power, with reborn New Gods at his side and the Ghost Sector as an implacable fortress, Darkseid sets his sights on the remaining universe! Can anyone stand in his way? Where are Justice League Odyssey? And what are the shocking identities of the heralds who now do Darkseid's malevolent bidding?