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160 pages • first pub 1927 (editions)
ISBN/UID: 9780006917250
Format: Paperback
Language: English
Publisher: Armada
Publication date: Not specified
Description
Determined to learn the secret of the old mill, Frank and Joe employ a clever ruse to gain entrance and become trapped. There they unravel two mysteries, one involving a counterfeiting case and the other, a national security case their father is w...
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Content Warnings
160 pages • first pub 1927 (editions)
ISBN/UID: 9780006917250
Format: Paperback
Language: English
Publisher: Armada
Publication date: Not specified
Description
Determined to learn the secret of the old mill, Frank and Joe employ a clever ruse to gain entrance and become trapped. There they unravel two mysteries, one involving a counterfeiting case and the other, a national security case their father is w...
Community Reviews
Content Warnings