ST:TNG: THE VALIANT
For those who want to enjoy the entire story of the U.S.S Stargazer. my recommended reading order is STAR TREK: TNG: REUNION, STAR TREK: TNG: THE VALIANT, and then the Stargazer series proper. Either that or reading Valiant first then the Stargazer series then Reunion as a grand finale of the series. I actually read Reunion first then some of the Stargazer series before realizing The Valiant was set before it. Confused yet? Well, that's just Trek Lit continuity for ya.
The premise of the book is a sequel to "Where No Man Has Gone Before" where Kirk fought Gary Mitchell with the power of a big giant rock. Apparently, the U.S.S Valiant, which had it's own omnipotent psychic problems, had survivors and some of them come to Starfleet with news of a dangerous threat to the Federation. Lt. Commander Picard, 2nd officer on the Stargazer, is thrust into a position where he must make a number of hard decisions to determine how to deal with this.
Essentially, the premise of the book is a long-standing fan analysis of the original episode that I've thought about myself. Basically, was Gary Mitchell driven mad and made evil by his powers or was it because he could sense that his fellow crew members were plotting against him? The Enterprise crew react with uncharacteristic fear, suspicion, and hatred at the evolution of a crewmate. Was it the power that made him mad or knowledge that they were turning against him? How much was the character flaws of Both? Neither?
It's interesting to tackle that question in the context of TNG with a psychic on the bridge and a being with incredible learning capacities like Data. Picard is far more accepting of the psychics in their midst than the others but they're also not as terrifyingly powerful as Mitchell either. They're also not entirely on the level either. It also has the aliens from "By Any Other Name" (the one who turns people into dice-like objects and crush them) but I wasn't a big fan of their presence, Galactic Barrier reference or not.
The book is really about the power of trust and how its lack can be a toxic force. Its interesting to examine this in the context of the book because, really, the Valiant descendants and others give ample reason not to be trusted. We also have the crew refusing to trust their acting captain, even to the point of mutiny (which would make them the second mutineers in Starfleet timeline-wise unless we count Kirk stealing the Enterprise in STIII according to the DISCO revelations).
I felt the villains of the book were underdone because we never get to speak with them and they are about as nuanced as Space Orcs from what we know of them. There's more than enough intrigue on the ship, though, and really enjoyed that. I did think that the author overused "The 2nd Officer" to describe Picard, though, when most people would have just used his name. Either way, I enjoyed watching Picard rise to the occasion as acting captain.