"To begin with," said Daisy Holroyd, "there's a thing in that ocean that would astonish you if you saw it. Turn your head!"

"I am," I said meekly.

"Did you hear what I said?"

"Yes—er—a thing in the ocean that's going to astonish me." Visions of mermaids rose before me.

"The thing," said Daisy, "is a Thermosaurus!"

I nodded vaguely, as though anticipating a delightful introduction to a nautical friend.

"You don't seem astonished," she said reproachfully.

"Why should I be?" I asked.

"Please turn your eyes toward the water. Suppose a Thermosaurus should look out of the waves!"

"Well," said I, "in that case the pleasure would be mutual."