A tale of the bully of the Frozen North and his mysterious guardian.

A game-and-man-story that makes a good boy-story.
_The topnotch of production in boys' books.

Remarkable covers and four-color jackets.

Illustrations and cover designs by Dan Sayre Grosbeck._ Price, 60 cents each The REILLY & BRITTON CO.
PUBLISHERS, CHICAGO The Boy Scouts of the Air Books _By_ GORDON STUART [Illustration] Are stirring stories of adventure in which real boys, clean-cut and wide-awake, do the things other wide-awake boys like to read about.
_Four titles, per volume, 60 cents_ THE BOY SCOUTS OF THE AIR AT EAGLE CAMP THE BOY SCOUTS OF THE AIR AT GREENWOOD SCHOOL THE BOY SCOUTS OF THE AIR IN INDIAN LAND THE BOY SCOUTS OF THE AIR IN NORTHERN WILDS _Splendid Illustrations by Norman Hall_ * * * * * Publishers The Reilly & Britton Co.

Chicago _The Best Aviation Stories for Boys_ The Aeroplane Boys Series _By_ ASHTON LAMAR [Illustration: THE AEROPLANE BOYS SERIES WHEN SCOUT MEETS SCOUT ASHTON LAMAR] [Illustration: THE AEROPLANE BOYS SERIES BATTLING THE BIGHORN ASHTON LAMAR] These are the newest and most exciting books of aeroplane adventure.