Ghost / Batgirl: The Resurrection Engine

In this 2001 Dark Horse one-shot, writer Mike Kennedy and artist Ryan Benjamin pit Batgirl against the spectral vigilante Ghost in a tense, single-issue crossover. The story, set within the publisher's shared universe of that era, sees the two heroines clash over the titular Resurrection Engine, a device with the power to alter life and death. It's a compact, high-stakes meeting of two distinct crime-fighting styles, offering a neat snapshot of early-2000s Dark Horse superheroics.