9. BETTY GORDON IN MEXICAN WILDS, or The Secret of the Mountains
Betty receives a fake telegram and finds both Bob and herself held for ransom in a mountain cave.
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THE RADIO GIRLS SERIES
BY MARGARET PENROSE
12mo. Cloth. Illustrated. Jacket in full colors
Price per volume, 65 cents, postpaid
A new and up-to-date series taking in the activities of several bright girls who become interested in radio. The stories tell of thrilling exploits, out-door life and the great part the Radio plays in the adventures of the girls and in solving their mysteries. Fascinating books that girls of all ages will want to read.
1. THE RADIO GIRLS OF ROSELAWN, or A Strange Message from the Air
Showing how Jessie Norwood and her chums became interested in radiophoning, how they gave a concert for a worthy local charity, and how they received a sudden and unexpected call for help out of the air. A girl wanted as witness in a celebrated law case disappears, and the radio girls go to the rescue.