Famous crime fighter Smiffy Blue blunders his way to solving the mystery of a missing formula and three other cases.
- ISBN10 0606186077
- ISBN13 9780606186070
- Publish Date 1 December 1999 (first published 1 April 1996)
- Publish Status Out of Print
- Out of Print 13 March 2021
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Language English