24 books
The Submarine Boys and the Middies; or, The Prize Detail at Annapolis (Esprios Classics)
The Submarine Boys for the Flag (Esprios Classics)
The Submarine Boys, and the Smugglers or Breaking Up the New Jersey Customs Frauds (Classic Reprint)
The Submarine Boys Trial Trip or Making Good as Young Experts (Classic Reprint)
The Submarine Boys and the Spies - Scholar's Choice Edition
The Submarine Boys' Lightning Cruise The Young Kings of the Deep
The Submarine Boys and the Middies The Prize Detail at Annapolis
The Submarine Boys' Trial Trip "Making Good" as Young Experts
The Submarine Boys, Volume 1
The Submarine Boys' Trial Trip; Or, "Making Good" as Young Experts
The Submarine Boys and the Middies; Or, the Prize Detail at Annapolis(Dodo Press)
The Submarine Boys on Duty Life of a Diving Torpedo Boat
The Submarine Boys for the Flag Deeding Their Lives to Uncle Sam
The Submarine Boys and the Spies Dodging the Sharks of the Deep
The Submarine Boys' Trial Trip
The Submarine Boys on Duty
The Submarine Boys and the Spies
The Submarine Boys for the Flag
The Submarine Boys and the Middies
Submarine Boys for the Flag, the (Deeding Their Lives to Uncle Sam)
Submarine Boys Trial Trip, the ("Making Good" as Young Experts)
The Submarine Boys' Lightning Cruise
Submarine Boys on Duty, the (Life of a Diving Torpedo Boat)
Submarine Boys and the Spies, the (Dodging the Sharks of the Deep)