Dead letters : a novel / Caite Dolan-Leach.

"Ava Antipova has her reasons for running away: a failing family vineyard, a romantic betrayal, a mercurial sister, an absent father, a mother slipping into dementia. In Paris, Ava renounces her terribly practical undergraduate degree, acquires a French boyfriend and a taste for much better wine, and erases her past. Two years later, she must return to upstate New York. Her twin sister, Zelda, is dead. Even in a family of alcoholics, Zelda Antipova was the wild one, notorious for her mind games and destructive behavior. Stuck tending the vineyard and the girls' increasingly unstable mother, Zelda was allegedly burned alive when she passed out in the barn with a lit cigarette. But Ava finds the official explanation a little too neat. A little too Zelda. Then she receives a cryptic message--from her sister..."--Book jacket.