
PUBLICATION: Star Trek: The Next Generation Annual #3, DC Comics, 1992
CREATORS: Michael Jan Friedman (writer), Brandon Peterson and Pablo Marcos (artists)
STARDATE: 45968.8 (between Time's Arrow and Realm of Fear)
PLOT: When he was an ensign, Geordi saved the life of an important woman from the Onglaatu matriarchy. Today, her son has come to bring him to Glaa by order of the Imperatrix to ascertain if his bonded "moon-sister" is quite herself. Seems she's been brewing civil war, against her usual nature. Geordi goes alone to prevent the Federation from becoming entangled in a Prime Directive problem, and discovers "bluegill" parasites infecting his moon-sister and others. A fire fight in the Council chamber destroys the parasite queen, freeing the infected Onglaatu. This helps convince the insular Onglaatu to apply for Federation membership.
CONTINUITY: There is a flashback to Geordi's days on the USS Hood under Captain DeSoto (Encounter at Farpoint). The "bluegills" appeared in Conspiracy.
DIVERGENCES: The stardate actually puts the story in between the two parts of Time's Arrow, which scarcely makes sense. Captain DeSoto looks nothing like he did in Tin Man.
PANEL OF THE DAY - Watch which branch you grab!

Comments
They look and act nothing like small, fresh-water panfish.
I call them that because Decipher's STCCG called it that, but I haven't seen the term elsewhere.