The Good Husband of Zebra Drive (No. 1 Ladies' Detective Agency Series)

The 8th novel in the No.1 Ladies Detective Agency Series
Grace Makutsi is promoted to associate detective and handles a case herself.
Mma Ramotswe helps the hospital in Mochudi deal with a string of mysterious patient deaths.
Her husband wants to try his hand at detection, and with his usual style, he does.
Charlie, the apprentice, decides to quit and run a taxi service.