"Genevieve von Petzinger reveals that, beyond the iconic images of horses and bison so transcendent in their beauty, are 32 signs that may represent a vocabulary written literally in stone, symbols that offer an opening into the Paleolithic mind. This may represent one of the most extraordinary scientific insights of our time."

– Wade Davis, author of The Serpent and the Rainbow, Professor of Anthropology Faculty Associate, University of British Columbia

"If you love mysteries, you'll love this book. Archaeologist von Petzinger acts as guide and sleuth in this fascinating, accessible, and fast-paced exploration of Ice Age artists and the evocative cave paintings they left behind.Von Petzinger offers a new way to think about why our distant relatives created this art, and what it means. You'll come away with a deeper appreciation for these great artists, their love of animals and the natural world, and their connection to us."

– Virginia Morell, author of Animal Wise and Ancestral Passions.

“In this wonder-filled book Genevieve von Petzinger takes us tens of thousands of years back in time, and to some stunningly beautiful sites, in a fascinating attempt to penetrate the psyches of those ancient people.”

– Ian Tattersall, author of The Strange Case of the Rickety Cossack and Other Cautionary Tales from Human Evolution

Von Petzinger has created a fascinating look at signs found in the caves that have not been thought of before. I have been in many of the caves myself and recognized many of the symbols. I thought her analysis of the symbols reflected the intelligence of our ancient ancestors. She has done a remarkable job of analyzing part of the cave art that has never been done in that way before."

– Jean Auel, author of the bestselling Earth's Children series

"Fascinating, a journey through later prehistory, interspersed with personal anecdotes of her exploration. She delves expertly into many of the questions around the earliest expressions of art, symbols and language."

– Louise Leakey, paleontologist, Director at the Turkana Basin Institute

"Brings fresh eyes and fascinating theses to the study of ancient rock art... Lively... Linking these systems to other graphic conventions may eventually yield some sort of Rosetta stone... Anyone who's longed to visit Lascaux or the caves of Cantabria will be eager to read von Petzinger's admirable efforts at cracking the code."

– Kirkus

"An exceptional read that should capture the imagination of anyone fascinated by time, humanity, and prehistory."

– Library Journal (Starred Review)