Hardcover, 174 pages

English language

Published Jan. 6, 1962 by Grosset & Dunlap.

ISBN:
9780448089034
OCLC Number:
1718891

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The Hardy boys determined to learn the secret to the old mill employ a clever ruse to gain entrance only to find themselves trapped in a subterranean passageway.

10 editions

Subjects

  • Detective and mystery stories