"It's a good plan," the sailor said slowly, "when you're
going into unknown waters, and don't want to leave a wake
for the other fellow to follow, to keep your charts locked
up. If it's all the same to you," he added diffidently, "I'd
rather wait until we get to where your father and Mr. Sharp
are before displaying the real map. I've no objection to
showing you the one Mr. Berg saw," and again he chuckled.

The young inventor blushed at his indiscretion. He felt
that the news of the search for the treasure had leaked out
through him, though he was the one to get on the trail of it
by seeing the article in the paper. Now he had nearly been
guilty of another break. He realized that he must be more
cautious. The captain saw his confusion, and said:

"I know how it is. You're eager to get under way. I don't
blame you. I was the same myself when I was your age. But
we'll soon be at your place, and then I'll tell you all I
know. Sufficient now, to say that I believe I have located
the wreck within a few miles. I got on the track of a sailor
who had met one of the shipwrecked crew of the Boldero, and
he gave me valuable information. Now tell me about the
craft we are going in. A good deal depends on that."

Tom hardly knew what to answer. He recalled what Mr. Sharp
had said about not wanting to tell Captain Weston, until
the last moment, that they were going in a submarine, for
fear the old seaman (for he was old in point of service
though not in years) might not care to risk an under-water
trip. Therefore Tom hesitated. Seeing it, Captain Weston