G-Men - 02/37: Adventure House Presents:

The Navy Spy Murders Sinister undercover foes of America plot a mighty campaign of espionage and slaughter! Crime follows crime as the F.B.I. fights courageously to stem the tide of lawlessness that threatens to engulf our nation! Face Value by Lee Fredericks Hell's Hostage by Kenneth L. Sinclair Poca Hauntus by Tom Curry