Batman #565, published in 1999, is the first part of the "Mosaic" storyline within the expansive "No Man's Land" crossover event. In this issue, Black Mask has evolved his criminal enterprise, now leading a dangerous cult in an attempt to seize control of Gotham City. Batman and the new Batgirl must confront his escalating threat. This issue is notable for featuring Barbara Gordon's first observation of the new Batgirl in action, a key moment for collectors following the "No Man's Land" narrative.