she had been indulging in. At the same time, however, I had an
uneasy feeling that I had missed something which might have been to
my advantage. It was in vain that I whipped my dull senses; but one
conclusion was indicated by all this inference, and I don't care even to
mention that: it was preposterous.

Then Miss Trevor shifted to a very serious mood. She honestly did her
best to persuade me to relinquish our enterprise, to go to Mr. Cooke and
confess the whole thing.

"I wish we had washed our hands of this Celebrity from the first," she
said, with a sigh. "How dreadful if you lose your position on account of
this foolishness!"

"But I shan't," I answered reassuringly; "we are getting near the border
now, and no sign of trouble. And besides," I added, "I think Miss Thorn
tried to frighten me. And she very nearly succeeded. It was prettily
done."

"Of course she tried to frighten you. I wish she had succeeded."

"But her object was transparent."

"Her object!" she exclaimed. "Her object was to save you."

"I think not," I replied; "it was to save the Celebrity."

Miss Trevor rose and grasped one of the sail rings to keep her balance.
She looked at me pityingly.

"Do you really believe that?"

"Firmly."

"Then you are hopeless, Mr. Crocker, totally hopeless. I give you up."
And she went back to her seat beside the refrigerator.

CHAPTER XVII

"Crocker, old man, Crocker, what the devil does that mean?"

I turned with a start to perceive a bare head thrust above the cabin
roof, the scant hair flying, and two large, brown eyes staring into mine
full of alarm and reproach. A plump finger was pointing to where the
sandy reef lay far astern of us.

The Mackinaws were flecked far and wide over the lake, and a dirty
smudge on the blue showed where the Far Harbor and Beaverton boat had
gone over the horizon. But there, over the point and dangerously close
to the land, hung another smudge, gradually pushing its way like a
writhing, black serpent, lakewards. Thus I was rudely jerked back to
face the problem with which we had left the island that morning.

I snatched the neglected glasses from the deck and hurried aft to join
my client on the overhang, but a pipe was all they revealed above the
bleak hillocks of sand. My client turned to me with a face that was
white under the tan.

"Crocker," he cried, in a tragic voice, "it's a blessed police boat, or
I never picked a winner."

"Nonsense," I said;