“I think they are going to Portland, either by auto or in a boat,” answered Dick.

“That’s just what I think,” added Tom. “But we may be mistaken.”

“Before we go any further, I am going to have that house watched,” went on Dick. “I’ll hire a first-class detective, and then, if Mrs. Sobber or any of the others come back, we’ll have ’em arrested.”

They visited a detective agency, and a man was put on the case without delay. Then the Rovers hurried down to the water front, to see if they could get any trace of Mrs. Stanhope there.

An hour’s tramping produced no results, and somewhat discouraged, they were on the point of going to the hotel, to meet Spud, when they saw an old sailor come from a restaurant close by.

“My friend,” said Dick, addressing the old tar, “I’d like to get some information. Did you ever hear of a schooner in these parts that was called the Mary Del something or other?”

Mary Del?” repeated the old sailor, twisting his forelock. “Oh, I reckon you mean the Mary Delaway!” he cried. “Sure, I know her. Didn’t I see her sail for Portland less than an hour ago!”

CHAPTER XXII
A CHASE UP THE COAST

“You saw her sail for Portland!” cried Sam.

“Less than an hour ago?” exclaimed Tom.