The Ice Cream Mystery (2003)
The Ice Cream Mystery is a 2003 brothers and sisters v juvenile fiction book written by Gertrude Chandler Warner and Aimee Lilly.
The owner of the Greenfield Ice Cream Barn has two new partners: her granddaughter Brianna and the horse Butterscotch. Benny frequents the Ice Cream Wagon, run by Brianna with Butterscotch's help. But who is trying to shut down the Ice Cream Barn?