The "Hutch" series -- named for Priscilla "Hutch" Hutchins -- began with the excellent "Engines of God", continued with the readable "Deepsix", staggered over the embarrassing "Chindi", and had presumably ended with the abysmal "Omega". At least, it was supposed to end with "Omega", touted (at the time) as the final book of the series. It should have, too: the mystery of the Omega clouds was insultingly revealed; Hutch had moved from the main character of the series to an unnecessary, minor character (and a beaurocrat, at that!); and the intelligent aliens that drive the action are green muppets... whose civilization and culture are taken straight from Plato, Aristotle, and Sophocles.
And now McDevitt returns to the once-concluded "Hutch" series with "Odyssey". My first complaint is that McDevitt based this novel in the Hutch universe. The major tropes of that series -- Hutchins herself, the Omega clouds, evidence of once-thriving alien civilizations now extinct -- are either underplayed (Hutch is a minor character who occasionally moves on-stage, usually to complain about something or follow someone else's orders) or unused (Omega clouds? The Monument Makers? Anybody care?). "Odyssey" would have worked better as a stand-alone title... or it could just as easily have been tacked on to the "Talent for War/Polaris/Seeker" series. Believe me, it would make as much sense in that series as it does in the Hutch series.
My second complaint is that the book is exceptionally dull. The plot is exceedingly thin: alien spheres called "moonriders" have been reported for the last twenty or thirty years (though never in any of the previous novels), and it's time to bolster public opinion of the Space Academy by dropping unmanned probes in high-traffic areas where moonriders are typically reported. If the dropping of unmanned probes doesn't scream "action," I don't know what does. (Apparently, neither does McDevitt.) Some stuff happens along the way... I guess the moonriders are throwing asteroids at planets and space hotels and whatnot. Which leads to my next complaint:
The obligatory "rescue." I'm not sure when Jack discovered that he could bulk up a novel by turning at least a third of it into a daring, seat-of-your-pants rescue. I suppose this is linked with my "dull" complaint, but really: does every novel require an elaborate, breath-taking rescue, with fingernail-biting drama? If that kind of thing is your bag, baby, then you're in luck. If not, flip ahead four or five chapters. At a time.
My final complaint is the inconsistency of the novel, as set in the "Hutch" universe. The whole point of having a series is to continue the adventures (or lives) of characters we know. But there's nothing recognizable of Hutch or Gregory MacAllister (introduced in Deepsix) in this novel. Hutch mopes around, blaming her boss and acting like a fairy-Godmother to a senator's daughter. MacAllister swoons around like a lovesick puppy, and his hellfire proclamations have been turned down to simmer... if that.
It's almost as if McDevitt needed a trustworthy-pilot-turned-pencil-pusher and a cynical newseditor to drive the action, but didn't feel like making up new characters. Whatever: Odyssey-Hutch and Odyssey-MacAllister are like pod people. They have the names and they look like the real thing, but I didn't recognize them in this novel.
Last word: Odyssey would have made a good short story set in an original universe. As it stands, it is a bloated piece of writing, forcibly rammed into what was once an enjoyable, intelligent series. I can only hope that this is the end of the Hutch-saga; maybe the obligatory rescue should be this series, from its author.