Erin is a confident yet empathetic girl. She is one of the most popular girls at South Ridge Middle School and has high intellect. However, she has been shown to be slightly rude to Max (as seen in their phone call). She is also the president of the computer club. She is into theater and would have played the Ice Queen in her school's play if it was not cancelled. Her costume is used by Max when all of his clothes are muddy. She may help Max escape the school and catch robbers in the second or third book.
Erin is Max Crumbly's secret crush and Thug. It is still unknown if she returns feelings to either one of them. As she hasn't hinted it yet, but it is unsure