The Question and Answer section for The Boy in the Striped Pajamas is a great resource to ask questions, find answers, and discuss the novel.
The father of the family is transfered to be the comandante of Auschwitz.
Bruno does not like his new home. He misses his friends, he misses his house, and he misses the sights and sounds of the city. Yes, Bruno feels very lonely.
Kotler got sent to the front lines. I think Bruno's father knew that Kotler and his wife were having an affair.