"The creator of Medical Examiner Kay Scarpetta peers into space and finds just as much skullduggery there...[introducing] an equally strong, even more tormented heroine...[in] federal special agent Capt. Calli Chase." --Kirkus Reviews

"Move over, Doctor Kay Scarpetta...Quantum inaugurates a new series with a confident new heroine..." --The Telegraph

"Cornwell's long-time fans will recognize her talent for jumping immediately into action. From page one, the reader is drawn into the space and time of the characters, as Cornwell wastes no time getting the reader oriented into the story. The claustrophobic confines of the opening setting are fantastically described, to the point that readers may have to remind themselves to breathe normally." --The Nerd Daily

"Brilliantly crafted, gripping, and smart..." --Post Register

"Buckle up for a race to the finish that does not disappoint." --Bookreporter

"As always, Cornwell establishes time, place, and mood by expertly crafting each scene to make you feel as if you're in it." --New York Journal of Books

"Gripping, suspenseful, and leaves you wanting more." --Better Reading