From Washington the scene is shifted to the great oil fields of our country. A splendid picture of the oil field operations of today.

Seeking treasures of Indian Chasm makes interesting reading.

At Mountain Camp Betty found herself in the midst of a mystery involving a girl whom she had previously met in Washington.

A glorious outing that Betty and her chums never forgot.

Rebellious students, disliked teachers and mysterious robberies make a fascinating story.