The Happy Hollisters and the Swiss Echo Mystery (#25 in the Happy Hollisters series)Business had originally brought the Hollister family to Europe. Then a new and exciting mystery led Pete, Pam, Holly, Ricky, Sue, and Mrs. Hollister on a thrilling chase while Mr. Hollister returned...
Business had originally brought the Hollister family to Europe. Then a new and exciting mystery led Pete, Pam, Holly, Ricky, Sue, and Mrs. Hollister on a thrilling chase while Mr. Hollister returned to America. High in the Swiss Alps, a suspicious stranger in a cable...