Teaching kids to be honest is not an easy task. Who didn't lie when they were young? Enslow's series Character Education with Super Ben and Molly the Great tackles this subject, along with tardiness, sharing, citizenship, responsibility, caring, courage, and healthy habits.
Molly the Great Tells the Truth, available in both library and paperback editions, starts with Molly (the rabbit) and Ben (the bear) jumping on the couch. After being told my Molly's father to stop jumping, they continue and Molly falls off of the couch, landing on her crown and breaking it. She then has to explain to her father how the crown broke, and gets caught being dishonest.
These early elementary readers combine character education with early literacy skills.