Stiles didn't think he would ever return to Beacon Hills, but here he was reunited with his friends and family, and of course there was trouble, a supernatural kind of trouble and it wanted Stiles.... Why did he return again?
Mitch Rapp had another mission. He wasn't happy. He had left his identity of Stiles Stillinski behind and now Irene wanted him to go back to Beacon Hills. He had no say in this, an order was an order.
Scott and his friends were sad. Five years ago, Stiles had disappeared. There was no note, no indication of his departure, but he left.