that a clue lay somewhere outside the reach of his intelligence,

"Oh, it will not harm him," said Lambert. "How long the day has been--and what glorious sport we have had! It hardly seems possible that we left Broek only this morning."

"I have enjoyed it well," he said, "but it seems to me at least a week since we started."

Carl laughed and muttered something about "twenty naps."

"Here we are at the corner. Remember, we all meet at the Red Lion at eight," said the captain as he and Jacob walked away.

The boys were glad to find a blazing fire awaiting them upon their return to the Red Lion. Carl and his party were there first. Soon afterward Peter and Jacob came in. They had inquired in vain concerning Dr. Boekman. All they could ascertain was that he had been seen in Haarlem that morning.

"As for his being in Leyden," the landlord of the Golden Eagle had said to Peter, "the thing is impossible. He always lodges here when in town. By this time there would be a crowd at my door waiting to consult him. Bah! People make such fools of themselves!"

"He is called a great surgeon," said Peter.

"Yes, the greatest in Holland. But what of that? What of being the greatest pill choker and knife slasher in the world? The man is a bear. Only last month on this very spot, he called me a PIG, before three customers!"