Legendary artist/writer Neal Adams returns to BATMAN: ODYSSEY with a brand new 7-issue miniseries. In the premiere issue, Talia al Ghul is kidnapped by The Sensei. In order to save her, Batman must travel to the Underworld, a land deep in the core of the earth underneath Gotham City that few even know exists. Not to mention, it’s inhabited by dinosaurs that not only survived, but have been continuously evolving. Can Batman survive amongst these ravenous creatures in time to save Talia?