Murder On the San Juan Express

Was Johann Mueller's death a tragic accident or was he a victim of murder?

Mueller, A German born physicist who immigrated to the United States in the 1930s to escape Hitler and the Nazis, was a scientist for the U.S. Department of War. Traveling on the Denver Rio Grande Western's famed San Juan Express, Mueller dies under mysterious circumstances.

With World War II raging and foreign spies operating in the United States, FBI Special Agent Nelson Paine is assigned the sensitive task of uncovering the truth about Mueller's death.

Forced to retrace Mueller's last hours of life, Paine finds himself riding the same passenger train through the open, arid lands on the border of southern Colorado and northern New Mexico. One bit of evidence after another leads Paine to believe Mueller's death is neither an accident nor a murder of opportunity. Suspecting espionage, Paine continues Mueller's journey, seeking to discover...