Title: The Twiddle twins' single footprint mystery
First published: 1998
Description: Tabitha and Timothy Twiddle, twin hippos, must prove to their neighbor that they are not responsible for the mysterious footprint left in the wet cement in front of his house.
Subjects: Fiction, Hippopotamus, Twins, Mystery and detective stories, Children's fiction, Hippopotamus, fiction, Twins, fiction
LC classification: PZ7.G575 Tws 1998