176 pages (unpaged) illustrations (chiefly color) 26 cm
Note
"Batman created by Bob Kane with Bill Finger; Superman created by Jerry Siegel & Joe Shuster, by special arrangement with the Jerry Siegel family."
"Originally published in single magazine form in Batman 118-121, 124" -- Title page verso
Volume numbering from title page verso
"While unraveling a mystery that involves his closest allies, Batman will come to face-to-face with a new villain who turns the darkness into his greatest threat. As Gotham celebrates surviving Fear State, Batman retreats alone into the darkness. But when he learns of a mystery involving Batman Inc., it forces the Caped Crusader to leave Gotham for a brand-new adventure! He'll discover Batman Inc.'s mysterious new benefactor and clash with a brand-new foe who turns Batman's greatest weapon against him. Will Batman be able to save his closest allies or find himself lost in the dark against the Abyss?"-- Provided by publisher