What's That Smell by Lauren McLaughlin

 

By Lauren McLaughlin Illustrated by Debbie Ridpath Ohi Mitzi Tulane may be only three years old, but she sure knows how to follow a trail of evidence and solve tough mysteries. From the strange happenings in the kitchen to the sudden arrival of every family member she’s ever met, Mitzi pieces together the clues and (finally) realizes that she’s . . . in the middle of her own surprise birthday party!