Don't be fooled by the cover: this Star Trek book is evenly distributed so that every character gets a chance to do something, a refreshing change from the usual Picard/Data focus.
The Enterprise arrives at a neutral planet to mediate negotiations between the warring Klingon and Hidran empires. Picard mangages to get the two talking, but of course, this is the Enterprise: things are bound to go wrong. When a Hidran delegate is murdered, Worf is accused as the assassin, with Picard left trying to defend him. Meanwhile, Riker and Troi go missing after taking a shuttle to investigate some odd communication discrepancies, Data gets completely paranoid about Klingon spies, Geordi is REALLY blind, and Beverly attempts to hold together the ship. Whew, with so much action going on, the author does a surprisinglly great job holding together a cohesive storyline, keeping audiences captive.
My favorite line of the book is Picard's thought after assigning Crusher to command the ship in his absence, "She wasn't his first choice, but everyone else was either under arrest, missing, blind, or insane." :) Anyway, its a great book, with some funny bits and enough action to satisfy anyone. My only quibble was the sudden resolution, which didn't seem to do the rising action of the book justice. Despite this, it is one of the better ST: TNG books I've read and would recommend it to any fan.