The Secret in the Sand Castle  (The New Bobbsey Twins #4)
Publisher: Aladdin
Published: February 1, 1988
Language: eng
Format: Paperback
ISBN-13: 9780671626549
Subjects: General; Juvenile Fiction / General; Children: Grades 4-6; Fiction; Children's 9-12 - Fiction - General; Buried treasure; Mystery and detective stories