
I would highly recommend reading Cluster. This book offers the perfect balance of medical mystery, suspense, and romance. I most enjoyed the engaging characters and how the author shares in the research of a medical mystery. This book kept me engaged throughout. Again- a great read!
This was a good story and had its twists and turns that kept you wanting to read more. Well spun tale that is a medical mystery interwoven well with other elements. It was easy to get behind the main characters, Dan and Anna, and follow their tale. Highly recommended!
Cluster is a unique and engaging blend of the best of medical mysteries, spy thrillers and rich romance in a razor sharp story with twists and turns that make it hard to put the book down. Get snacks, make yourself comfortable, turn off the phone, and be ready to read it in one sitting.
I really enjoyed this book of medical mystery, and romance. The characters were believable and entertaining, with strong values. Well written, and highly recommend!
Cluster is a fast-paced international thriller combined with a medical mystery, reminiscent of stories by Robin Cook. Exceptional character and plot development pull the reader immediately in. Set in Boston Ma, an environmental physician, Dan Murphy, tries to unravel the mysterious, rare, nearly always fatal disease that has emerged in a small group of patients in South Boston. Compounding, Dr Murphy’s sense of urgency is one of the patients is his brother Patrick. The author masterfully entwines this with international terrorism and the geopolitical intricacies of BREXIT.
Dr McCunney’s background in environmental medicine and his gift for storytelling blend together to create an exceptional read. I highly recommend cluster.
"Cluster" is an exceptional medical mystery novel that seamlessly combines thrilling suspense with a deep understanding of medical intricacies. The author's detailed knowledge of the medical field brings an authenticity to the story that is both educational and fascinating. Each twist and turn in the plot is masterfully crafted, keeping me on the edge of my seat throughout the entire book. The characters are well-developed and relatable, adding an emotional depth to the narrative that is rare in mystery novels. I highly recommend "Cluster" to anyone looking for a gripping story that is as informative as it is enthralling - it's a true 5-star read!
The author did a good job meshing themes of toxic poisoning in the workplace along side the political issues of the IRA, Brexit and personal loss and retaliation. Bostonians will enjoy the Boston setting and references to familiar Boston areas. Give this new fiction author a read.
Cluster if a thrilling story of disease, terrorism, and romance. Set in Boston, McCunney takes us on a wild ride through a cluster of rare diseases that are ultimately linked to the IRA, Brexit, seething hatred and revenge. All the while, tracing a budding romance between our two heroes! McCunney's characters are well constructed with some gritty "Southies" and the pace makes for a real page-turner. I strongly recommend this author and look forward to future works.
This is a must read book. I loved it and couldn't put it down. It's a medical thriller with romance, international terrorism. Living near Boston I could see places he mentioned plus I was interested in learning about Brexit so I've done some research. Very interesting. I didn't want the thriller to end. Waiting for the author's next book.
I fell in love with Dan and Anna as they fell in love with each other! The plot, the characters, the pace, and the suspense- all make for a fantastic novel. I’m waiting on Another Cluster!


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Dr. Bob McCunney is a specialist in internal medicine and occupational and environmental medicine. He is a practicing physician in the Pulmonary Division of the Brigham and Women’s Hospital in Boston, a member of the Harvard Medical School faculty, and a visiting scientist at the Harvard School of Public Health. He is a former director of Environmental Medicine at the Massachusetts Institute of Technology. Over his career, he has lectured in countries around the world in Europe, Asia, Africa, Australia, North America, including Canada, and Mexico.
Dr. McCunney received a BS in chemical engineering from Drexel University, an MS in environmental health from the University of Minnesota, an MD from the Thomas Jefferson University Medical School, and an MPH from the Harvard School of Public Health. He completed training in internal medicine at Northwestern University Medical Center in Chicago.
He has served as editor in chief of five textbooks and authored or coauthored more than one hundred twenty-five peer-reviewed articles and book chapters. He has also coauthored a book on getting recruited to play college baseball, based on his experience with his son who was recruited to play college baseball at Fordham University. This is his first novel.

The investigation of a rare blood disease and the development of an unexpected romance come clashing into a sinister international plot. Doctor Dan Murphy is puzzled why his healthy 28 year old brother develops a rare potentially fatal blood disease. As part of an academic course in environmental medicine, he meets Anna Carlson, a young journalist pursuing a graduate degree in public health. With Anna's encouragement, they navigate environmental government agencies while Anna conducts a research project for her degree to determine the cause of the blood disease which they learn has affected other young men. Dr. Murphy is further challenged in his evaluations of unusual symptoms in workers at a local chemical company. Along the way, Dan and Anna fall in love. At the same time, Parker Barrows a former British intelligence officer who lost his wife and lake and an IRA explosion in London, has nefarious plans to exact revenge and interfere with diplomatic negotiations on the fate of Northern Ireland and the Brexit agreement. As Dan and Anna investigate the cause of the diseases, Barrows and his henchman continue their plans to sabotage the Brexit negotiations. Dan and Anna eventually determine the cause of the disease; their pa