Sabre-Tooth is the title of an action-adventure novel by Peter O'Donnell which was first published in 1966, featuring the character Modesty Blaise which O'Donnell had created for the comic strip of the title. It was the second novel to feature the character, though technically it was the first original novel as the preceding volume was a novelisation of a movie screenplay. This story introduces the American millionaire John Dall, who reappears in many of the following books. Source: Wikipedia (en)