Action & Adventure

The Lost Continent

The Moon Maid

The Flying Legion

Adrift in Pacific and Other Great Adventures – 17 Titles in One Volume (Illustrated Edition)

Frank Reade Jr.'s Submarine Boat; or, to the North Pole Under the Ice

Odyssey to Mars

The Dead Rock Stars

The Quest for the Lost Amber Room

The Moon Colony

Four Day Planet & Lone Star Planet

The Wailing Asteroid

Warlord

Calculated Risk

Blue Galaxy

A Soldier's Pledge

Zero Gravity Outcasts

The Contestant

Code Name: Dove

The Red Witch

The Necessary War