The happy Hollisters and the mystery of the midnight trolls.
By: Illustrated by Helen S. Hamilton.
Contributors: Hamilton, Helen S., illus.
Edition: [1st ed.]
Publisher: Doubleday
Published: 1969
Place of publication: Garden City, N.Y
Language: eng
Format: Hardcover
Number of pages: 183
Subjects: Mystery and detective stories.
Description: The five Hollister children visit Iceland where they meet trolls and help catch thieves.