6. The Defiant's "Mission Gamma" continues when Ezri Dax, Dr. Julian Bashir, and chief engineer Nog encounter an unusual alien artifact. Known as Cathedral/Anathema, it causes their "worldlines" to become misaligned. What does NOT result from this?
From Quiz The "Star Trek DS9" Relaunch - Pt. II
Answer:
Dax no longer requires a host or a liquid environment
The millennia-old alien artifact exists in multiple dimensions, through which it constantly shifts. Contradictorily known in their language as Cathedral/Anathema, it is the subject of a war between the D'naali and the Nyazen, the former wanting to destroy it, the latter determined to preserve it. The D'naali guide aboard the Defiant, nicknamed Sacagawea, tells Ezri Tigan, the hostless Dax symbiont in its specially designed tank, two-legged Nog, and the rapidly deteriorating Julian that their "worldlines" are misaligned; this is interpreted to mean that they are merging with their selves from another, parallel universe. This can only be rectified inside the artifact, where they each must face their own demons and other selves before becoming whole again; all four are successful and come to accept some difficult parts of their lives.
"Mission Gamma, Book Two: Cathedral" is the collaborative effort of authors Michael A. Martin and Andy Mangels.