Sammy, Brian, and Joyce must keep the government's top secret decoder from falling into the wrong hands. When John Moore's huge teddy bear is stolen from his shop porch and then appears at the toy factory, a series of mysteries begins that the super sleuths must solve one at a time. Reading level 9-13. Book #10 in the "Sammy & Brian Mystery" series. (154pp. Gaslight Pub., 2000.)