The third volume of "The Four Enchanted Sisters" in paperback. Behind an old picture, the Cantrip sisters find a letter addressed to all four of them, but written over a hundred years ago. How can that be? They weren't even born back then. Sky, Flora, Marina, and Flame must unravel the mystery! But then, the curious Charles, a nephew of the wicked Glenda, gets in their way – could he be a spy? The "Four Enchanted Sisters" series by Sheridan Winn has been published in the following order: Four Enchanted Sisters, Four Enchanted Sisters and the Magical Stone, Four Enchanted Sisters and the Secret of the Towers, Four Enchanted Sisters and a Ghost from Ancient Times, Four Enchanted Sisters and the Great Reconciliation, Four Enchanted Sisters and the Foreign Magic, Four Enchanted Sisters and the Ancient Power, Four Enchanted Sisters and the Mysterious Twins, Four Enchanted Sisters and the Wisdom of the Owls.