When Sam and Tom returned to the doctor's place they found the coach driver still at hand, he having caught Arnold Baxter's horse at the entrance to the lane.
"Take him to the stable and ask the doctor if the rig is his," said Tom, and the coach driver agreed. He was gone the best part of quarter of an hour.
"The doctor says it is his horse and carriage, but he also says he didn't know the turnout was out," he announced, with a grin. "He's an oily one, he is!"
"Right you are, but he can't stuff us with his fairy tales," replied
Tom. "Do you suppose there is a policeman handy?"
"There is probably one somewhere around."
"I wish you would hunt him up and bring him here."
"What are you going to do?"
"Dare the lion in his den; eh, Sam?"
"Right, Tom! That doctor must know a good deal more than he is wiling to tell."
The coach driver went off, and walking around to the front of the sanitarium the boys rang the bell sharply.