Batman Shadow of the Bat #29 DC Comics (1992)

Bruce Wayne is training in the woods outside Gotham while a ninja is trying to find him, sent by Lady Shiva.

Batman (Jean Paul Valley) is having hallucinations of St. Dumas and he tries to fight through them. Robin does some investigating of Valley and reflects that he's going crazy. Robin meets up with Bruce Wayne who invited Nightwing for a debriefing on what they know about Valley. Nightwing and Robin agree to join Bruce in taking down Valley.