Fierce Little Things by Miranda Beverly-Whittenmore

Saskia is left adrift by her parents first to her grandmother's house and then passed to another family who in turn uproots the family to live at a strange commune called "home". After taking all their money and possessions the charismatic leader, Abraham tries to teach them the benefits of unthinging and living off the land. Saskia falls hard for Abraham and begins to appreciate the teachings then but something bad happens. Years later Saskia and the other teens from Home are sent threatening letters that tell them to come Home or else. Reluctantly they return to confront the blackmailer and the incident that changed their lives. The book jumps back and forth between Saskia's youth and teen years at Home and current day. The sudden jumps and short chapters took me some time to adjust to but add to the suspense. This is a coming of age story with a thriller edginess. Recommended for readers of Emma Cline's THE GIRLS and I KNOW WHAT YOU DID LAST SUMMER.  4 stars