Midnight Tunnel by Angie Frazier
Suzanna Snow's parents run an inn on the coast that caters to wealthy families from Boston and they are trying to train Suzanna to run the business. Suzanna however wants to be a detective like her famous uncle. When a young girl disappears from the inn, Suzanna starts to investigate. She is excited to share her thoughts with her uncle, but he won't listen to the ramblings of a child. Suzanna won't give up. She is determined to find out what happened the night Maddie disappeared.
Recommended for grades 3 - 6.