Frank and Joe discover that working out in Bayport's new superspa can be hazardous to their health--one patron winds up in the hospital and another is found dead. The boys suspect that underworld thugs are involved--the kind of thugs who stop pumping iron to start spraying lead.
- ISBN10 0671730991
- ISBN13 9780671730994
- Publish Date 21 May 1993 (first published 1 May 1992)
- Publish Status Active
- Out of Print 10 December 2011
- Publish Country US
- Imprint Simon & Schuster
- Format Paperback
- Pages 10
- Language English