A society founded by the descendants of crews stranded in a pocket dimension inside the Delta Triangle, visited by the Enterprise and the Klingon ship Klothos in The Time Trap.
Elysia is the civilisation found in the Animated Series episode The Time Trap. Ships that vanish in the Delta Triangle arrive in a small separate universe where time passes very slowly and where the dilithium in a starship's engines decays within days. Unable to leave, the crews of centuries of lost vessels have built a peaceful community among the drifting hulks.
It is governed by a council drawn from 123 species, led by the Romulan Xerius, with the Orion woman Devna as interpreter of its laws. Violence is forbidden, and telepaths enforce the rule.
The Enterprise and Commander Kor's Klothos escape by joining the two ships and their engines together. Kor has an explosive hidden aboard the Enterprise, but the Elysians sense the plot and give warning in time.