Maisy and the Missing Mice: The Maisy Files, Volume 1 (Unabridged‪)‬

Maisy Sawyer is not your average fourth grade student. She is a detective with a special skill for solving mysteries. In the first story in the series, Maisy tries to solve the case when her school's mascots go missing. The thief contacts Maisy and steals from her as well. Can Maisy catch the thief and return the mice to their home in the science lab?