Something is terribly wrong with Batman. No matter the tests Bruce takes, nor the numbers he counts, the greatest detective in the world canโt pin down the source of this creeping dread-of his own inner demons and a looming mortality. Meanwhile, real demons roam the shadows as an ancient melody haunts the Gotham night. As Batman investigates the songs and the demons of Gotham, he is forced to confront the oldest question: Has there has been a demon within him all along? And if so, what does it wantโฆand why hasnโt it taken over yet? Collects Detective Comics #1062-1065.