good a man to have his name tacked on to that hole. If you want
to name it, why don't you call it 'Lake Shiver'?"

"That is a good name," answered Mr. Gibbs; and so it was called.




CHAPTER XI

THEY BELIEVE IT IS THE POLAR SEA


With no intention of ascending again into any accidental holes in
the ice above them, the voyagers on the Dipsey kept on their
uneventful way, until, upon the third day after their discovery
of the lake, the electric bell attached to the heavy lead which
always hung suspended below the vessel, rang violently,
indicating that it had touched the bottom. This sound startled
everybody on board. In all their submarine experiences they had
not yet sunk down low enough to be anywhere near the bottom of
the sea.

Of course orders were given to ascend immediately, and at the
same time a minor search-light was directed upward through the
deck skylight. To the horror of the observers, ice could plainly
be seen stretching above them like an irregular, gray sky.

Here was a condition of things which had not been anticipated.
The bottom below and the ice above were approaching each other.