A Gamma Quadrant world on which Dax and Odo find a village whose inhabitants, unknown to themselves, are holograms created by a refugee from the Dominion, in Shadowplay.
In Shadowplay, set in 2370, Dax and Odo trace an unusual particle field to Yadera II and find a small settlement whose people are disappearing one by one. Odo works with the village protector, Colyus, and befriends a girl named Taya whose mother is among the missing.
The investigators discover that the village and almost everyone in it are projections of a failing hologenerator, which is why no one can leave the valley. The exception is Taya's grandfather Rurigan, who built the device thirty years earlier after the Dominion conquered his home on Yadera Prime.
Rurigan at first wants the machine left off, but Odo argues that the villagers are real in every way that matters. Dax repairs the generator and the community is restored, the missing villagers among them.