The book series, The Baby Sitters Club,is written by Ann M. Martin. In book number 30, "Mary Anne and the great romance", her dad is getting married to Dawn's mother. Towards the end of the book, when they are married, Mary Anne is grumpy about all the changes that are going to take place in her new family. While she is thinking this, she looks up and Dawn is handing her a now- were-sisters-present." So in number 30, it says that Dawn gives Mary Anne the present. However, in the next book, number 31, "Dawns wicked step sister,which is a continuation of number 30, Dawn clearly states that she is trying to save her money to buy Mary Anne a now-were-sisters-present because Mary Anne had gotten one for her. Wrong! The author,Ann M. Martin got that backwards. In book number 30, Dawn gave the present to Mary Anne and she was doing the same thing in number 31. Slip up!