Carman, Patrick. The Dark Hills Divide(Land of Elyon Bk 1) Orchard Books, c2005 0-439-75843-2. Alexa Daley goes beyond the walls built by Warvold to the forest and the Dark Hills. She finds enchantment and discovers some outlaws are planning to invade the city.She must find out who the spy in Bridewell is and report to the council. A 250 page mysteryand fantasy.