"We can try it, anyhow," said Sandy; "take it in your teeth, and see if it does belong to these bits of iron jewelry."

It was a difficult and tedious task, but Jack at last accomplished it, and had the key inserted in the lock of Sandy's handcuffs. It fitted perfectly. Sandy laid his hands out flat on the table, so as to hold the handcuffs rigid, and then Jack gave a twist.

There was a sharp click, and Sandy was free.

"Now for you," he exclaimed, and, taking the key from Jack, with his now-free hands, he soon had that lad disburdened of his incumbrances. The lads really had some difficulty in keeping from cheering when this was accomplished. But, of course, they didn't. In fact, although they were now a little better off than they had been before, they were by no means "out of the woods" as yet. Like the young bears in the fable, they had still most of their troubles before them. But, nevertheless, it was a great relief to have air and the freedom of their hands.

"I guess the tug must have anchored," observed Sandy. "Wonder if we are lying at any city? If so, we could make a dash for it, and chance to there being somebody around who would help us out of our difficulties."

"I wish we had some sort of weapons," said Jack. "At any rate, we could make a fight for it. I feel as if I'd do anything rather than go back to that hold again."

"So do I. But let's get that water and then tackle some grub. I never felt so hungry in my life."

No more time was wasted on mere words. The boys fell to on the table scraps, as if they were starved—as indeed they were.

And how good that water tasted! Never had the most delicious soda either of them had ever sampled one-quarter of the cool delight of that pitcher full of "aqua pura."

"Ah-h-h-h!" breathed Jack, with a sigh of repletion, "that was something like."