Diamonds can be deadly…

David Bengu has always stood out from the crowd. His personality and his physique match his nickname, Kubu—Setswana for "hippopotamus"—a seemingly docile creature, but one of the deadliest in Africa. His keen mind and famous persistence have seen him rise in the Botswana CID. But how did he get his start?

Inauspiciously. His resentful new colleagues are suspicious of a detective who has entered the CID straight from university, skipping the usual beat cop phase. Nearly broke, with no car or wife, Kubu has the support of his parents, but success will depend on self-reliance. He is immediately plunged into investigations at two airports.

One takes him to the airport near Gaborone where something criminal is going on in baggage claim.

The other begins at Jwaneng Airport, where a plane bursts into flames. It's the opening move in a brutal heist of stones from the world's richest diamond mine. The robbers die in a shoot-out, but the diamonds remain missing. So who masterminded the crime? Rumors of a witch doctor's involvement send the detectives down a dark path. Ultimately, new recruit Kubu finds himself engineering a risky trap. Will his first major case prove his worth—or kill his career?