Bittersweet by Miranda Beverly-Whittemore. Gothic suspense. From Amazon: Plain scholarship student Mabel Dagmar is surprised when her glamorous blue-blooded roommate at their prestigious east coast university befriends her, even more when Genevra "Ev" Winslow invites her to spend the summer at Bittersweet, her cottage on the sprawling Vermont estate owned for generations by her family. Mabel falls in love with the place, finds a love interest and begins to feel like one of the Winslows. But she soon discovers a dark side to this family - will she keep the secrets? Lots of twists will keep you turning the pages.
