William E. Butterworth

Homicide Sergeant Matthew Payne is used to murder, but lately there's been an awful lot of it in Philadelphia. A gangland shooting in a popular tourist location left six dead, most of them bystanders, and days later the headless body of a Latina turns up in the Schuylkill River. Everybody assumes that they're not related, but Payne can't shake the hunch that there's something more to it - and that hunch leads him to the Texas-Mexico border.

"The Presidential Agent adventures return in the most harrowing novel yet in the #1 New York Times-bestselling series. Mexican drug cartels are shooting up the streets of Laredo and El Paso. Somali pirates are holding three U.S. tankers for ransom. The President is fed up and has what he thinks is a pretty bright idea-to get hold of Colonel Charley Castillo and his merry band and put them on the case. Unfortunately, that will be difficult. Everybody...

In the first weeks after World War II, a squeaky-clean new second lieutenant named James D. Cronley Jr. is spotted and recruited for a new enterprise that will eventually be transformed into something called the CIA. One war may have ended, but another one has already begun, against an enemy that is bigger, smarter, and more vicious: the Soviet Union. The Soviets have hit the ground running, and Cronley's job is to help frustrate them, harass them,...

When a hostile Third World country begins to receive military training and nuclear technology from foreign nations, Charley Castillo and his team investigate only to be abandoned by the U.S. government and placed on hit lists throughout the world.