Adams had his first collaboration on Batman with writer Dennis O’Neil. The duo, under the direction of editor, Julius Schwartz, would revitalise the character with a series of noteworthy stories reestablishing Batman’s dark, brooding nature and taking the books away from the campy look and feel of 1966-1968.
Adams introduced new characters to the Batman mythos beginning with Man-Bat co-created with Frank Robbins in Detective Comics #400.
The same creative team revived Two-face in Batan and revitalised the Joker in The Joker’s Five-Way Revenge in Batman #251, a landmark story beginning the character back to his roots as a homicidal maniac who murders people on a whim and delights in his mayhem.