What is the author trying to say about lies and deception? What message should we (as readers) learn from all of the lies being told in Bruno’s family?

I suppose Bruno's parents might, on some level, protect Bruno from the evil being inflicted at he death camp. Bruno and his sister are kept in the dark about the camp. In reality the lies told to Bruno do him more harm than good. Lying doesn't protect him from finding out the truth in the most brutal way possible.