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Brad Parker and Karen Richmond Book 5

Paperback,  6″ x 9″
245 pages
ISBN 978-1-63381-323-6

by Geoffrey M. Cooper

Sequel to Forever: A Medical Thriller (Brad Parker and Karen Richmond Book 2), Bad Medicine: A Medical Thriller (Brad Parker and Karen Richmond Book 3), & Ill Intent: A Medical Thriller (Brad Parker and Karen Richmond Book 4)

A tragic overdose, an institutional cover-up, and human trafficking. When Dr. Brad Parker helps investigate the death of a patient at a Portland, Maine, cancer center, he senses a cover-up to protect the responsible physician. His suspicions are quickly confirmed when both doctors involved in the case are found dead. As Brad and his partner—FBI agent Karen Richmond— investigate, they uncover a hospital-based sex-trafficking operation, leaving them struggling to identify the man at the top before the victim count rises.

* * *

In this fifth installment of an ongoing series, Cooper deftly uncoils a complex scheme that not only involves murder, but also human trafficking. An often-exciting tale of medical malfeasance and wide-ranging criminality.

Kirkus Reviews

Perilous Obsession: A Medical Thriller is especially recommended for readers of Robin Cook and his ilk, who will find Geoffrey M. Cooper’s story a riveting tale.

—D. Donovan, Midwest Book Review

Perilous Obsession will have its readers finishing it in one sitting. Action-packed with surprises at every turn.

Manhattan Book Review

This is a page-turner that will have you sitting on the edge of your seat right to the end.

San Francisco Book Review


Geoffrey M. Cooper is a retired cancer researcher and academic administrator, having held positions at Harvard Medical School and Boston University as professor, department chair, and associate dean. He is the author of several scientific texts and is now using his experience in academic medicine as background for writing medical thrillers. He lives in Ogunquit, Maine.

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