I'm sorry that I damaged your book . for it was an accident. I hope you can forgive me. if I can I could help you get a new one or do another small favor in return.
Dear _____, I am sorry that I destroyed your book. It was not on purpose I destroyed it it was by accident. I will save up some money to buy the book back. I hope you did not get in trouble for it. And hope you will accept my apology
