Frank and Joe are framed when they're asked to stage a fake crime at the Sky Blue Inn for a mystery weekend. When the robbery becomes real, the Hardy Boys are the prime suspects.
- ISBN10 0006942628
- ISBN13 9780006942627
- Publish Date 14 May 1992 (first published 1 January 1988)
- Publish Status Out of Print
- Out of Print 12 May 1994
- Publish Country GB
- Publisher HarperCollins Publishers
- Imprint Armada
- Format Paperback (A-Format (178x111 mm))
- Pages 160
- Language English