daughter Susan likes to collect and read old children's book. She's become an incredible reader. She had problems with reading and learning before, and we were advised to encourage her to read ever since and she started reading. Her skills improved. She also reads to her two-year-old sister every night. I have a stepson Levi, who can be a hothead sometimes. We don't have a son-dad relationship, but I respect him and he respects me, though he can act quite mean and selfish towards me and his sisters. He'll throw away stuff that belongs to us over small arguments and tease a Susan for spending a lot of time reading and calling her grandma. My wife and I have discussed his behavior and had conversations and agreed on punishments, but Levi'd go to his dad's place whenever he caused his trouble. Then he has his dad yell at me for wanting to discuss suitable punishment. Then Levi comes home days later expecting to let go of whatever he did every time. It's frustrating. I got a call at work from Susan saying Levi took her entire book collection and threw it in the pool after she refused to lend him and his friends her camera for his trip. My wife helped me get them out, but they were all wet, some were torn. It was horrific because some of those books are hard to get and meant a lot to Susan as part of her life. I was so mad at Levi that I came home to have a conversation with my wife to decide a punishment, but he already had packed a small bag and went to his dad's. I asked my wife how could she let him basically run after doing this and she said he called his dad and he came and picked him up after Susan said that I was coming home to deal with the problem. I went to his dad's house and he refused to let me see him. I told him how Levi was hiding from consequences and his dad tried to justify why Levi was acting out by blaming me for how me and Susan are treating him. He even said that he'll get CPS involved if I ever try to punish him because I'm not his dad. I have no right. Adding what Levi did was a reaction to my daughter being mean to him. He told me to leave because Levi won't come home until I promise not to do anything about what he did and put it in writing. I told him that Levi should stay with him then. He's not to come back until he gets proper punishment. His dad argued that it's his mom's house too and called my wife asking her to let it go and they will figure out some other way to resolve it and I don't think it's fair to Susan to have her books ruined and Levi get away with it. They're asking me to let it go but only encourage Levi to do worse if I don't deal with it now. It's been two weeks and my in-laws saying that I'm out of line for blaming Levi for coming home and are telling me to step back but I refused.