A fascinating thriller that weaves together historical fiction, mathematical intrigue, and mighty philosophical clashes, all with Pythagoras” teachings as a backdrop. It will keep you riveted from the first page to the last. –Eli Maor, author of The Pythagorean Theorem A fun read, this book is gripping, clever, and chock-full of accessible math and philosophy. I couldn”t put it down. –Doron Zeilberger, Rutgers University