“Aunty Welcome,” Sue put in.

“You’ll never guess,” Polly declared delightedly. “And he won’t be so very far away from us, about ninety miles. He’s come up to dig for bones and things for the Museum, you know.”

“But, Polly, please, we don’t know!” protested Ted. “Tell us, can’t you?”

“Dr. Penrhyn Smith, our blessed old smuggler from Lost Island. Grandfather says here that the Doctor starts the first of next week. He says he will follow the trail of the dinosaur to the Jurassic Beds.”

“Last time he was hunting a polypus,” said Ruth.

“A dinosaur is an animal ninety feet long,” Sue added, thoughtfully. “Once they found one as small as a bantam.”

“Susan Randolph Warner,” exclaimed Polly, “you behave. We must respect any dinosaur, no matter what its size, if it brings the Doctor this way. He told grandfather he’d look in at us some day to be sure we were all right.”

“Sandy would love to meet him,” Jean said. “And so would father, and all of us.”

“I wonder where on earth the Jurassic Beds are,” Ruth meditated.

“At last,” cried Isabel, happily, “there’s one thing Grandma doesn’t know.”