An all-expense-paid trip to Spain turns out to be no prize for the Hardy Boys, who have unwittingly become players in a dangerous game of espionage.
- ISBN10 0671854763
- ISBN13 9780671854768
- Publish Date 3 July 1995 (first published 1 April 1988)
- Publish Status Out of Print
- Out of Print 5 October 2004
- Publish Country US
- Publisher Simon & Schuster
- Imprint Pocket Books
- Format Paperback (A-Format (178x111 mm))
- Pages 480
- Language English