"Don't be foolish, honey," said Betty impatiently. "You can't sit there all day in dripping clothes, and besides you will really get cold."
"Humph," grunted Mollie, getting to her feet rather unsteadily and shaking out her sodden skirts. "I guess this isn't the first time I have taken a dip in cold water. And besides," she added impatiently: "I don't know about you girls, but I would like to know just what that thing was that we saw dart beneath the falls."
"That was what made you fall into the water, wasn't it?" asked Betty, her forehead wrinkling thoughtfully. "You leaned so far out to see--"
"Yes, yes," Mollie interrupted impatiently, all her curiosity revived. "That was what made me fall into the water all right. But what I want to know is--what was it?"
"I don't know," said Betty, shaking her head. "I didn't see it."
"Neither did I," Grace added.
Mollie looked from one to the other of them open-mouthed. Then she turned to Amy.
"You saw it, didn't you?" she asked. "You screamed, you know."
"Yes," said Amy, nodding her head very solemnly. "And it looked to me a lot like what we saw last night."
"Thank goodness, you saw it too or the girls would surely think I had been dreaming or was crazy," said Mollie, with relief. Then she suddenly turned and started off into the woods. "I'm going all alone to find out what that was," she told her stupefied chums. "I've got to clear up the mystery before I'm an hour older."