Del Rey, 1989, $3.95, ISBN 0-345-35808-2, 283 pages

For a plot that rips off Butch Cassidy and the Sundance Kid, this is actually an entertaining little book. The universe is a sea of fragments separated by "nothing" and certain technologies and people can navigate between the oases of reality.

For years, the trio of Reave, Minstrel Boy, and Billy Oblivion --the DNA Cowboys--had scrapped from one end of reality ot another raising hell and escaping punishment. Alas, the team broke up, but fate once again draws them together for a last run before the unniverse goes completely crazy. You seee, berzerkers are destroying the universe fragment by fragment, and the DNA 'Boyz are trying to keep one step ahead. And they were doing just fine until they got caught up in one of their own scams and the berzerkers appeared.

The prose is acceptable, moves right along, and makes the characters a likeable bunch. After a while, you even start rooting for the DNA Cowboys. All you need is "Raindrops Keep Fallin' on My Head."