In early October 2376, Dapo and his sister were taken to the Najana Library in Leran Manev by their mother. While they were inside, a riot broke out on the streets outside, instigated by a neo-Purist radical group. Seng got Dapo and Dula outside and tried to get them home but they were caught up in the crowds where they were sprayed with an anesthezine-containing crowd-control gas. Both Dapo and his mother had allergic reactions to the gas which affected their breathing and mobility, but they managed to get to Manev Central Hospital, however they were turned away. Dapo thought their entry was refused because his mother wasn't joined to a symbiont.
A little while later, they were found by Doctor Julian Bashir and Asal, a Trill police officer. Bashir treated Dapo and his mother with lectrazine and Dapo was surprised that the hypospray didn't really hurt. (DS9 - Worlds of Star Trek: Deep Space Nine novel: Trill: Unjoined)