Danny Dunn Scientific Detective Author:Jay Williams and Raymond Abrashkin #3 in series — Professor Bullfinch invents a foolproof safe for Midston's biggest department store. The lock works by smell and will open only when it detects the scent of the manager's had --or his assistant's. — The day after the lock is installed, the manager vanishes and Professor Bullfinch cannot be found. The next day the safe is... more » robbed! Has the manager been kidnapped? Is the assistant part of a plot? And where is the Professor?
Archway Pocket paperback--illustrated by Paul Sagsoorian.
With Bleeper, his robot bloodhound, Danny sets out to clear Professor Bullfinch of suspicion and discover who the real thief is!« less