“Nothing will.”

“You can’t be certain, Anne. If you need help at any time or want to talk with me, fly a white flag from the boat landing. I’ll see it from the lodge if the day is clear and come as fast as I can.”

“All right,” Anne agreed, “I have an old white skirt I can use.”

She accompanied Madge to the beach, helping her launch the skiff. The rain had ceased falling and the sky was slowly clearing. Before saying goodbye, Madge promised Anne that she would have Old Bill search for the overturned canoe. Anne thanked her again for her kindness, urging her to return soon.

“Don’t forget,” she called, as her friend floated slowly away from the beach.

“I’ll be likely to forget!” Madge chuckled softly to herself. “Even if I didn’t like Anne, that missing formula would be sufficient bait! This has been an exciting day and unless I miss my guess the fun is only starting!”

CHAPTER III
A Puzzling Letter

Although the sky had cleared, evening shadows were creeping over the lake. Madge rowed steadily, knowing that soon it would be dark. She wondered if her long absence from home had caused worry and was not greatly surprised when she sighted another boat on the lake.

“It’s Uncle George and Old Bill,” she decided. “They’re out looking for me.”

She waved her hand to assure them she was quite safe and in a few minutes, Old Bill, with a skillful sweep of the oars, brought the boat alongside the skiff.