Batman + Batgirl: Thrillkiller '62 One-Shot (1998)

Batgirl Barbara Gordon, still reeling from the death of Dick Grayson at the hands of the Joker, teams up with renegade police detective Bruce Wayne, now known as Batman! But when the Joker returns to become the new crimelord of Gotham City, will Barbara's thirst for vengeance mean the end of the Dynamic Duo? Written by Howard Chaykin. Painted art and cover by Dan Brereton.

Elseworlds tale.  Near mint condition.