From the Doubleday hardcover jacket:
"In his riveting suspense-novel debut, Harlen Campbell takes us on a terrifying adventure into the dark and dangerous heart of old friendships and long-buried secrets.
"Paul 'Rainbow' Porter is a man who prefers to live in controlled isolation on a mountain high above Albuquerque, New Mexico, but who descends from his aerie when necessary--to help people out of siturations where 'everyone is wrong' but someone is 'most right.'
"Just this kind of situation arises when a beautirul Eurasian girl, April Bow, appears unanounced on his doorstep asking for help. Her adoptive father, one of Rainbow's old Vietnam buddies, has just been blown up-in his home in California-by a Claymore mine.
"With April in tow and sexual tensions rising, Rainbow begins a frightening journey back to his past, to eventsw and relationships that began twenty years ago, to find out why accunts long since closed appear to have been reopened, and why people are dying.
"In Rainbow Porter, Harlen Campbell has created a uniquely appealing outlaw--a man libing on the edge, a man trained to watch his back at all times, a man with a personal code of ethics that has nothing to do with institutionalized justice. Campbell's writing is as terse, tense, and compelling as Rainbow Porter himself, and MONKEY ON A CHAIN will keep readers riveted from enigmatic opening to heart-stopping climax."