A college student risks everything to prove his father innocent of treason in this classic YA suspense novel from a New York Times–bestselling author.

Bart Hastings was born into a military family. His army colonel father has devoted his life to defending his country, and his older brother recently gave his life fighting the Viet Cong. Now many are looking to Bart to join up, but he's no longer certain he can support the deadly conflict.

Then Bart makes a shocking discovery after returning home one evening. His father is accused of treason and has been taken into custody. Bart can't believe his father would collude with the enemy and steal a top-secret weapon. He's determined to save his father's career and reputation. But his search for the truth could cost him his life . . .

Originally published in 1971.