Dead to you by Lisa McMann

Ethan was abducted nine years ago when he was seven years old. He has returned to his family and everything is wonderful--at first. The adjustments are harder than everyone realizes and issues start to surface. Ethan resents Grace at first because she is young and represents that his parents went on with their lives without him. Blake, the younger brother, keeps wondering why Ethan went with the people who pulled up to him, when he knew they were not supposed to get in a car with strangers. The family is now falling apart in a different way and it would help if Ethan could remember more about the event to help answer questions. Tension and doubt build in the household and Ethan has only one person with whom  he can share his feelings. It all comes to a head when the police show up. This is a riveting story of desperation and trust and a desire to really belong.