Darnley Mills Adventure
Colonel Sheperton's Clock (1964)
aka The Mystery of the Colonel's Clock
The Grange At High Force (1965)
aka The Adventure at High Force
Sea Peril (1966)
Steam on the Line (1968)
War on the Darnel (1969)
Devil's Nob (1970)
Powder Quay (1971)
Dunkirk Summer (1973)
Skull Island (1977)
aka The Mystery of the Colonel's Clock
The Grange At High Force (1965)
aka The Adventure at High Force
Sea Peril (1966)
Steam on the Line (1968)
War on the Darnel (1969)
Devil's Nob (1970)
Powder Quay (1971)
Dunkirk Summer (1973)
Skull Island (1977)
