Betty and her chums have a grand time in the saddle.
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.
10. BETTY GORDON AND THE LOST PEARLS or A Mystery of The Seaside
Betty and her chums go to the ocean shore for a vacation and Betty becomes involved in the disappearance of a string of pearls.
11. BETTY GORDON ON THE CAMPUS or The Secret of the Trunk Room
An up-to-date college story with a strange mystery that is bound to fascinate any girl reader.
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CUPPLES & LEON COMPANY, Publishers NEW YORK