Madge explained that among other things she had jumped into the lake and wound up the tale of her adventure by mentioning the overturned canoe which had not been recovered.

“You go on home,” Mr. Brady directed. “Bill and I will see if we can pick it up.”

Before continuing toward the lodge, Madge pointed out the general locality where she thought the canoe might be found. When she pulled up to the boat landing a few minutes later, Mrs. Brady, who had been anxiously watching from the veranda, rushed down to meet her.

“I’m glad you’re safe!” she exclaimed in relief. “I was so worried when the storm came up so quickly. Why, you’ve changed your dress! What happened and where is Anne?”

Madge repeated the story of her adventure, explaining that Anne did not wish to leave the island. After a slight hesitation, she related all that she had learned concerning the strange formula of Mr. Fairaday’s. Mrs. Brady was astonished to hear that his fortunes had dwindled, but to Madge’s disappointment she did not appear greatly impressed with the story of the formula.

“It sounds like one of Bill’s yarns to me,” she laughed. “Whoever heard of a chemical preparation to keep things from rusting? If you find the formula, Madge, I want you to fix me up a solution for the kitchen pump! And for that rake your uncle left out in the rain!”

“It does sound fantastic, I admit, but somehow, I think there’s something to the story. I do know that scientists have been trying for years to find a paint that will prevent rust. Why, it would mean a fortune to the person who discovered the secret.”

“I don’t doubt it,” Mrs. Brady returned mildly. “I had no intention of trying to discourage you. By all means help Anne look for the missing paper or whatever it is, but don’t build your hopes too high. It’s very likely the formula never existed save in old Mr. Fairaday’s mind. I’ve heard it said that he was a queer man.”

Madge dropped the subject but that was not the last of it. When Mr. Brady and Old Bill returned a half hour later with Anne’s canoe in tow, Mrs. Brady repeated the story for their benefit and at the supper table Madge was subjected to a great deal of goodnatured teasing.

“Just wait!” she retorted. “Anne and I may show you a thing or two about formulas! If we find it, the laugh will be on you!”