Devil in the Sky is a Star Trek: Deep Space Nine novel by Greg Cox and John Gregory Betancourt. It was published in June 1995, as the eleventh book in Pocket Books' series of numbered DS9 novels. The novel features Horta, in the form of Ttan and her children; Ttan is kidnapped by a group of Cardassians, prompting a rescue mission, while her eggs safely held on Deep Space 9, cause chaos when they hatch and the baby Horta start to eat the station.