"The Happy Hollisters At Mystery Mountain" written by Jerry West. Over Seventy Illustrations in two colors by Helen S. Hamilton. Published by Doubleday & Company, INC., copyright MCMLVI. (1956)
Here is another exciting Hollisters adventure. What happens to the children when they spend a night on the desert? Is there really a monster on Mystery Mountain? And who could the rustler be? All these questions are answered in this fast-moving story.
184 page hard cover book in good condition with no rips, tears or writing. The dust jacket is worn.