It's a mystery, a love story and just a plain eerie tale. Siri Hustvedt's new book "The Enchantment of Lily Dahl" is set in Webster, Minnesota, a town that appears to be ordinary. Siri Hustvedt and her title character Lily Dahl share many things in common, both spent time as waitresses and both have lived in small Minnesota towns. Siri Hustvedt says her hometown of Northfield, Minnesota served as a model for the fictional town of Webster.