“A fabulous read…irresistible.” — New York Daily News “Vivid and engaging…succeeds brilliantly as both historical fiction and crime thriller. [A] terrific book…with a dozen twists.” — Diana Gabaldon, Washington Post “One of the most compelling, suspenseful mysteries I’ve read in years.” — New York Times bestselling author Sharon Kay Penman “The medieval answer to Kay Scarpetta and the CSI detectives.” — Karen Harper, bestselling author of the Elizabeth I mystery series “Fascinating…a rollicking microcosm of budding science, medieval culture, and edge-of-your-seat suspense.” — USA Today “Expert researched, a brilliant heroine.” — Kate Mosse, New York Times bestselling author of Labyrinth “CSI meets The Canterbury Tales…commercial paydirt…delivered with panache.” — Kirkus Reviews (starred)