The Extraterritorial

At the close of the twentieth century a series of natural disasters tear the United States apart. A new organization, the Association for Peace and Progress, forms to assist the government in restoring order, in part by erecting a Barrier from Lake Erie to the Gulf of Mexico, behind which lies safety and security. Martin Selkirk, an extraterritorial, protects the Association's interests outside the Barrier, although he has only a hazy idea of what he does. When he begins to realize the atrocities he has committed for the Association he plans his revenge.Laser Books
Laser Books was a line of 57 paperback science fiction (SF) novels published from 1975 to 1977 by Canadian romance powerhouse Harlequin Books. Laser published three titles per month, available by subscription as well as in stores. The books were limited to 50,000-60,000 words. They were numbered as a series, though each was a standalone novel. All the covers were painted by Hugo Award winning artist Kelly Freas.
Tim Powers, whose first book was published by Laser, has said that Epitaph in Rust was "mangled" by the editors at Laser Books. An unedited version was later issued by a different publisher. Piers Anthony had problems with their publication of his novel But What Of Earth?. This novel was also issued later, through Tor Books.