Some Laneys Died

"Sixteen-year-old Delaney, who is traumatized after witnessing her father's infidelity in the woods, blames herself for her parents' divorce. She rewrites stories from that period, telling herself "I couldn't go back in time, but maybe I could skip sideways." When her mother, a physicist, explains the Many Worlds Theory--in which a separate universe exists for each possible choice a person could have made, including consequences that branch out from them--Delaney is shaken. Enticing because of its eerie implications and gradual in its execution, the theory unfolds through Delaney's anxious perspective."--