Oklahoma Police Headquarters calling all cruisers, all Highway Police. Look out for Lemmy Caution who has today broken jail at Oklahoma City, after killing a guard and Deputy Sheriff. Last seen proceeding in the direction of the State line near Tahlequah. Is probably proceeding to Joplin. Be careful. This man is dangerous! He is driving a dark green Ford V. 8 Sedan, with the near side driving window broken. The car is carrying Missouri State plates but these will probably be changed. Caution is armed. He is a killer. Caution was serving a twenty years' sentence for the shooting of an Oklahoma State policeman last year. Oklahoma Police Headquarters calling all police cruisers, all Highway Police. Look out for this man. Warn garages between Tulsa and Tahlequah that he will probably need gas. Go get him boys! Go get him boys! * * * A thriller with Peter Cheyney’s popular detective Lemmy Caution. This is the first in a series of ten novels featuring the FBI agent Lemmy Caution. A bestseller that enabled Cheyney to become a full-time novelist.