When is paranoia justified? How do you know if you're mentally stable? What should the limits of corporate power be? These are some of the questions that Cherryh asks in this book, and gives at least some intimation of what the answers should be.

This book represents the earliest shown time-point in the Merchanter/Alliance/Union universe, before the war has really broken out, and stays entirely within the solar asteroid belt and at sub-light speeds for its action. Here we have the ASTEX company controlling the great majority of the mining of the asteroids, with only a company limited role for independent prospectors. The main story revolves around Dekker, rescued from his damaged ship by two other independents, Pollard and Bird, and the slowly brought to light details of just how Dekker's accident occurred in the first place.

Dekker, with all his mental problems from his accident, and Bird, as the older, experienced independent prospector, are very well realized characters. Pollard is not as fully realized, but he is far more fully developed in the sequel to this book, Hellburner. The society of miners, the space station environment, and the economic structure are a little hard to get your mind around at first, as Cherryh presents bits and pieces of these items almost as side items to her action and dialogue. But by the end of the book, you begin to realize just how well she has created and defined this near self-contained world, so different from most Earth societies, but with recognizable points of similarity, of definite humanity.

The problems of this book come from this same style of presenting facts to the reader in regards to celestial navigation. Unless you are well versed in this subject, and can extrapolate from a single sentence of description to an entire scenario of vectors, g-forces, and delta-v requirements you will probably find that there are several action sequences that either don't make much sense or don't carry the high feeling of danger that they were intended to. This is minimization of expository material taken to the extreme.

Cherryh's prose style for her Merchanter books has always been very abbreviated, clipped, full of unexplained acronyms, with a large number of incomplete sentences. This style is good for providing a sense of tension and fast action, and does well in this book as she slowly reveals the details of just how the Company is trying squeeze out all the 'little' people and take total control of the Belt, but it does take some getting used to.

The action of this story drives Cherryh's thematic points, on the need for human independence and companionship, the depths of unbridled greed, the tenuous line between real and unreal within the mind, and the necessity for all people to keep on doing what is possible, regardless of odds.

A very good action story, but really needed a little more background and explanatory material to make a solid, cohesive whole. Required reading before starting Hellburner, however, where the problems of this book fade away and the full power of her envisioned world can be seen.

I am a devoted fan of C. J. Cherryh thanks to her fantasy novels Chernevog and Russalka. Her talent for science fiction, it appears, equals her talent for fantasy: she is alarmingly versatile in her style and subject matter. Heavy time is what the crew of a spacecraft needs, after concluding a mission, to restabilise metabolism, bodily functions and psychological processes. But when your heavy time is spent on a space station inhabited chiefly by those who have never seen a mountain or a snake, run by a company that would rather kill than lose profit or power, where your every movement and transaction is logged and controlled by said company, perhaps you are better off taking your chances in deep space. The two-man crew of a mining vessel picks up a distress signal, and they rescue a distraught young pilot whose mind is half gone, but who remembers enough to cause serious problems for the company. Perhaps they can get the break they've always longed for by claiming salvage rights on his ship. But maybe the repercussions - moral and political - will be too vast. One thing's for sure: the consequences of this trip will not be straightforward for anybody. Cherryh pours her almost full-stop-less prose straight into the consciousness; her characters are grit-tough, but you love them for it; the technical detail makes you ache to get your head round it and the plot is speedy, supercharged, breathtaking. This novel is considered a science fiction classic, and deservedly so. It's stunningly visual: I'd love to see it on film. I didn't want to put this book down; I'll certainly be on the lookout for the rest of the series. Cherryh's skill is consummate.

C.J. Cherryh is one of my favorite authors. I have to say that her Merchanter universe is perhaps the best conceived..the most developed and the most logical future world that I have read about. Heavy Time takes the readers back to the very beginning of the Merchanter timeline..the beginning of the Earth Company Wars. I recommend reading Heavy Time and the immediate sequel Hellburner together..they go best that way. Cherryh as always has believable characters in believable situations. You find yourself certain that someday in the not so distant future this is how things are going to be....

With plenty of suspense..action..and even a touch of romance this is an excellent novel.