Author E.L. Konigsburg is a two-time recipient of the prestigious Newbery Award. The Mysterious Edge of the Heroic World is a richly imagined tale of heroism and dark secrets. Longing for a friend, young Amedeo Kaplan meets the unusually quiet William Wilcox when the two agree to help an eccentric neighbor prepare her mansion for sale. Soon the boys discover that the many treasures scattered throughout the home may be the key to a great and startling secret.