Kube-McDowell's very good at world building; he's not so good at story-telling, at least in this trilogy. The key part of this book is kind of opaque in that we know what's going on but really don't understand how the protagonist figured out the "solution."

And both the protagonist (Merritt Thackery) and his most important foil (Ali Neale) are kind of difficult to take; they're sometimes sympathetic characters but often they're painfully bad bosses. Especially Neale.

An interesting book. Not sure whether it's a good one. ( )

And avoid is not something I did, because I sort of felt I ought to complete the trilogy. Admittedly, they were fast reads – two days per book, pretty much – but they were also poor books. In this second one, the Earth has FTL ships searching for further colonies by those Ice Age Founders. And they’ve discovered a few, some now extinct. The novel is Merritt Thackeray’s story. He starts out as a student at a Government Service school, transfers to a Technical School, and ends up as a contact linguist on a survey ship. He’s an unlikable protagonist, and even Kube-McDowell’s attempts to make him sympathetic never really make him less annoying. At one colony, he disobeys orders and discovers the colony’s secret – that they were visited by the alien D’Shanna, who convinced them there was no point in existing any longer. Thackeray spends the rest of the novel hunting down the D’shanna… only to discover they’re not the villains. They’re energy beings from an alternate energy dimension, and one of them shows him the fate of the Ice Age Founders – they were wiped out by another alien race because one of the Founder’s colony ships had invaded their space. Enigma is better-written than Emprise, but not by much. However, it also introduces the trilogy’s big flaw: shit aliens. Who does energy-being aliens these days? They were a shit idea back in the days of the original Star Trek. The Trigon Disunity triogy is essentially a future history with Star Trek super-powerful aliens, and even for the 1980s it’s poor stuff. Especially for the late 1980s. New Space Opera was just starting to kick off, you had authors like Paul McAuley writing solid hard sf, not to mention the likes of CJ Cherryh, SN Lewitt or Susan Shwartz, among others… ( )