The final chapter of this exciting trilogy finds the Hardys facing their most dangerous mission ever as they avenge their father's death and stop an international espionage ring. Frank and Joe infiltrate Phoenix Enterprises to uncover the spy ring's mastermind, and find an unlikely ally--a young woman whose father--a Phoenix partner--was also murdered.
- ISBN10 0671851748
- ISBN13 9780671851743
- Publish Date 1 December 1994 (first published 1 August 1992)
- Publish Status Active
- Out of Print 14 January 1999
- Publish Country US
- Publisher Simon & Schuster
- Imprint Pocket Books
- Format Paperback
- Pages 160
- Language English