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Tom Swift and His Undersea Search; Or, the Treasure on the Floor of the Atlantic

The Young Treasure Hunter; Or, Fred Stanley’s Trip to Alaska

The Wrecker

The Treasure Hunt of the S-18

The Slipper Point Mystery

The Ruby of Kishmoor

The Return of Clubfoot

The Pirate Shark

The Outdoor Girls at Ocean View; Or, The Box That Was Found in the Sand

The Motor Boys on the Border; Or, Sixty Nuggets of Gold

The Closed Book: Concerning the Secret of the Borgias

The Brighton Boys in the Submarine Treasure Ship