#1 NATIONAL BESTSELLER

"Mind-bending ... A novel full of life-affirming ideas." - Kirkus Reviews (Starred Review)

"The cutting edge of science tipping into something new and marvelous ... a startling, fascinating novel." - KIM STANLEY ROBINSON, New York Times bestselling author

"Real science and limitless imagination combine in a thrilling story you won't soon forget." - ROBIN COOK, #1 New York Times bestselling author of Coma (and 37 other international bestsellers)

"Brilliant ... A riveting and moving story." - RHONDA BYRNE, #1 New York Times bestselling author of The Secret.

Caro Soames-Watkins, a talented neurosurgeon whose career has been upended by controversy, is jobless, broke, and the sole supporter of her sister, a single mother with a severely disabled child.

When she receives a strange job offer from Nobel Prize-winning scientist Sam Watkins, a great uncle she barely knows, desperation forces her to take it in spite of serious suspicions.

Watkins has built a mysterious medical facility in the Caribbean to conduct research into the nature of consciousness, reality, and life after death. Helped in his mission by his old friend, eminent physicist George Weigert, and young tech entrepreneur Julian Dey, Sam has gone far beyond curing the body to develop a technology that could solve the riddle of mortality.

Two obstacles stand in their way: someone on the inside is leaking intel and Watkins' failing body must last long enough for the technology to be ready.

As danger mounts, Caro finds more than she bargained for, including murder, love, and a deeper understanding into the nature of reality.

A mind-expanding journey to the very edges of science, Observer will thrill you, inspire you, and lead you to think about life and the power of the imagination in startling new ways.