The Pony Rider Boys in the Alkali [Illustrated] and millions of other books are out for another adventure, but this one is in, of all places, the Navada Desert. This time the boys are in the desert of Nevada, discovering the beauty and perils in 100 degree heat. It should be another thrilling ride that Professor Zepplin has taken them on! First Page: [Illustration: Cover art] [Frontispiece: Faster and Faster Danced Ned Rector.] The Pony Rider Boys in the Alkali. OR. Finding a Key to the Desert Maze. The Pony Rider Boys in the Alkali; Or, Finding a Key to the Desert Maze The Battleship Boys' First Step Upward; Or, Winnin 2018. The Pony Rider Boys in the Alkali; Or, Finding a Key to the Desert Maze. The Prince and the Pauper The Prince Niccol