Another Star Trek story written in the late 80s/early 90s in the vein of "if only these aliens knew how destructive they were to their own planet" - "surely, Humanity saved itself shortly after all those reports in the 80s about acid rain and pollution and such"...sorry to say, but it's nearly 2022, and we're still fucking the place up.
And this one has quite a few tropes:
1) World leader with childhood admirer/best friend, turned security chief, who later becomes a traitor.
2) World leader with childhood admirer/best friend, turned security chief, who later becomes a lover.
3) Giant vicious animal statues of a sacred beast which turns out to be a doofy, puffalump.
4) World on the edge of extinction only capable of being helped with the aide of their worst enemies.
5) Abandoned ghost ship heading towards the home world on the verge of avenging an ancient, forgotten feud.
6) AI which turns against its creator.
Oh, and Wesley has his girlfriend of the week. This is like the third novel I've read in the early TNG series here in which Wesley is running around with another teenaged female, flirting, smiling, etc. Always a different one in each book.
Oh, and we have yet another abandoned gigantic ship just lollygagging it's way through the galaxy. The place is lousy with 'em.
It's interesting that the ghost ship in this novel seemed to take away any of the steam or importance from what I thought was supposed to be the primary conflict here. The two worlds which require cooperation are hated enemies, been at each other's throats for centuries, who are both ruled by leaders that are completely sane and reasonable willing to put aside all of that history to achieve peace - with little to no strife between them. The "famous ambassador with a reputation to solve the unsolvable" literally exchanges maybe five lines with the "hated leader" and the dilemma is overcome - and then she promptly disappears from the story.
Both worlds are also apparently roiling with riots and rebellions over the actions of their leaders in broaching this peace - but once the treaty is signed, they just all go back home. Our most hated enemies are good now - they signed a piece of paper! But, we can't really develop these story lines because there's a giant, scary, world-ending ghost ship coming...which is also resolved after this centuries-old sentient computer and Data say a couple of things to each other and Data uploads a file and bam, friends! Oh, and the ship's commander/holy leader/last survivor of the legendary other enemy, yah, once the computer turns against him and tells him no, he just settles in and accepts that the blood feud he had sacrificed everything for and had spent years preparing for is over now and moves on...you win some, you lose some, I guess. This book is chock-full of reasonable fanatics.
I really think that the two different groups of exiled and hated enemies should have been combined into one story element - as they diluted each other too much to be in a single episode, uh, I mean a 260+ page book.
Otherwise, Troi flirting with a young alien guy, goes nowhere. The leader and her security chief lover is a little CW there, what with coercion and such. And, apparently no one in the Federation, well at least the Enterprise, has heard of one of these two planets - even though the population, we later learn, is renowned throughout the galaxy as "saviors of climates" as they go around the galaxy saving species of animals and plants nearing extinction due to pollution or other types of calamity - yep, I'm sure a ship full of scientists and explorers has never heard of them, but they have heard of the other planet, which is a backwater member of the Federation - seems reasonable.
Oh, oh...the crew of the Enterprise decides that the only way to stop the ghost ship is to ram it, and they've got a few hours to plan it out, but they can't send the saucer-section away because they need the mass...so, well, guess we need to tell everyone onboard they need to die because we have to ram the ship - and the saucer can't be used to escape...I mean, it's almost like we need some kind of small "pod," if you will, in which we could "escape"...you know, if only the ship had like hundreds of these little things scattered all over which could hold a few people each in which they could leave the ship in an emergency...not to mention the shuttles and other secondary craft on board...nope, that's crazy...let's ride this ship to hell!