Metamorphosis takes place in the second season of Star Trek: The Next Generation, but it’s a direct sequel to Jean Lorrah’s first TNG novel, Survivors.
In this novel, we see what Data might be like if his fondest wish was granted, and he became human, literally. Watching him adapt to being a “real boy” is both comic and poignant; watching him react to lost love is a bit disturbing. Someone said (probably in another TNG novel) that hurting Data is sort of like kicking a puppy, and it’s totally true.
In any case, at least they’ve fixed the errors with contractions – Data doesn’t use any in this novel, and it was still fun.