Dead to You by Lisa McMann

When Ethan was 7, he was kidnapped from his front yard, in front of his 4-year old brother Blake. Now at 16, he's made his way back home.

It hasn't been easy. He remembers living with a woman named Ellen, then being dropped off at a group home and running away. Now that he's home with his family, nothing seems familiar--not the house, his parents, or his brother. Not even Cami, his best friend from childhood. As Ethan settles back into his life, questions remain. Why can't he remember anything from the years before he was kidnapped? Why is nothing familiar? Blake, Ethan's little brother, is especially suspicious, and has a hard time accepting Ethan back into the family.

But is everything as it seems?

Good suspense and believable. Ethan tells this story, and while he's reliable, you wonder what he's hiding and why.