The Outdoor Girls at Rainbow Lake

The first book was called "The Outdoor Girls of Deepdale; Or, Camping and Tramping for Fun and Health." In that is given an account of how the four chums set off to walk about two hundred miles in two weeks, stopping nights at the homes of various friends and relatives on the route. At the very outset they stumbled on the mystery of a five hundred dollar bill, and it was not until the end that the strange affair was cleared up most unexpectedly.

The four girls were Betty Nelson, a born leader, bright, vigorous and with more than her share of common sense. She was the daughter of Charles Nelson, a wealthy carpet manufacturer. Grace Ford, tall, willowly, and exceedingly pretty, was blessed with well-to-do parents. Mr. Ford being a lawyer of note, who handled many big cases. Mollie Billette, was just the op