"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."

But this time Mollie found that there was some one stronger than she, and
that was Betty. The Little Captain ran after her and brought her back,
protesting but captive.

"We are going back to the house now and get you something hot to eat,"