This is the eighth in a series of nine novels based on the television series "Get Smart". This book tells the story of how Maxwell Smart, and his female partner Agent 99, must help Hymie the Robot, to rescue the kidnapped main computer of CONTROL named Number One. The villainous group known as KAOS, tries to "brainwash" the computer into doing evil deed. This eighth book was released in 1968.

Get Smart, books by William Johnston, each book was originally priced at 60¢;

1. Get Smart! #T-103
2. Sorry, Chief... #T-119
3. Get Smart Once Again #T-121
4. Max Smart and the Perilous Pellets #T-140
5. Missed it by That Much! #T-154
6. And Loving It! #T-159
7. Max Smart - The Spy Who Went Out to the Cold #T-174
8. Max Smart Loses CONTROL #T-191
9. Max Smart and The Ghastly Ghost Affair #T-5326