28 books
Beyond the Horizon
Torpedo Strike
Sinclair In Command
Jimmy-The-One
Nuclear Captain
Sub-zero
Submariner Sinclair
Souls Speak
Lost Boys of Hannibal
The Fighting Tenth
The Windship Race
Go Deep
William, the Conqueror
Frigate
Submarine
Carrier
Seawaymen
Target Risk
Red Mutiny
Black Tide
Avalanche
Oil Strike
Sea Above Them
Below the Horizon