Winner of the Truman Capote Prize for Literary Non-Fiction

2024 Edgar Award Nominee — Fact Crime

"Riveting… reported with empathy and Cross’s singature combination of unflinching detail and gut-punching revelations."

Beth Macy, New York Times bestselling author of Dopesick and Raising Lazarus

Paced like a thriller and full of insider information on the history and science of Crime Scene Investigation, In Light of All Darkness embeds readers in one of the most famous true-crime stories of our generation—the kidnapping of Polly Klaas—a case as pivotal in the history of the FBI as the Unabomber or Oklahoma City bombing.

On October 1, 1993, a 12-year-old girl was kidnapped at knifepoint from her bedroom in Petaluma, California, during a sleepover with two friends, while her mother slept soundly in the room next door. This rarest of all kidnappings—a stranger abduction from the home—triggered one of the largest manhunts in FBI history.  

Many Americans remember Polly's face, which appeared on the national news every night, on the cover of People magazine, and on more than 8 million flyers distributed as far as China. The emotional gravity of Polly’s story touched every agent, police officer, and forensic technician who worked on her case. Many of these investigators have never shared their stories—until now.

New York Times bestselling author Kim Cross has written the first comprehensive account of what happened on that fateful night in October, as well as how the case forever transformed the Bureau’s approach to solving crimes. With unprecedented access to files, crime scene photos, a videotaped murder confession, and inside sources, In Light of All Darkness follows the investigators who pieced together the evidence that led to the arrest and conviction of the kidnapper—and made the victim a household name and a girl who will never be forgotten.

“Kim Cross has taken a story we thought we knew and shown so much more, a life beyond the headlines. I cut myself on parts of it, as the author put a human face -- and spirit -- on this great sadness, and the mystery that haunted us. It is written without adornment, but still rich in details. That is a hard thing to do.”

—Rick Bragg, Pulitzer Prize-winning author

"The Polly Klaas kidnapping haunted my childhood. Now, thanks to Kim Cross's thoughtful, and deeply sourced book, I have a much richer understanding of this heartbreaking case, and its profound and lasting impact. In Light of All Darkness is a gripping look into a police investigation, a community galvanized by grief, and the girl at the center of it all."

—Rachel Monroe, author of Savage Appetites: Four True Stories of Women, Crime, and Obsession

“Writing with extraordinary care and compassion, Kim Cross shows not only the crime and its impact on the victims, but how the Polly Klaas case forever changed the way such crimes are investigated by law enforcement and viewed by the American people and mass media. In Light of all Darkness is not just another ‘true crime’ title, but real and essential American history.”

—Glenn Stout, author of Young Woman and the Sea and Tiger Girl and the Candy Kid

"A terrifying story told with compassion, empathy, and insight. Meticulously researched, In Light of All Darkness illuminates a murder that stunned the nation and the complex forensic science used to solve the case. Try as I might, I couldn’t turn these heart-thumping pages fast enough – and neither, I suspect, will you."

—Kathryn Miles, author of Trailed: One Woman’s Quest to Solve the Shenandoah Murders