The Magic Christian is a 1959 comic novel by American author Terry Southern (1924–1995) about an odd billionaire who spends most of his time playing elaborate practical jokes on people. It is known for bringing Southern to the attention of filmmaker Stanley Kubrick, who had received a copy as a gift from Peter Sellers, and subsequently hired him as co-writer for Dr. Strangelove (1964) when Kubrick decided to make that film a black comedy/satire, rather than a straightforward thriller. Guy Grand is an odd billionaire who spends most of his time playing elaborate practical jokes on people. A big spender, he does not mind losing large sums of money to complete strangers if he can have a good laugh. All his escapades are designed to prove his theory that everyone has their price—it just depends on the amount one is prepared to pay them.