mile wide.

This place was a tolerable long, steep hill or ridge about forty foot
high. We had a rough time getting to the top, the sides was so steep
and the bushes so thick. We tramped and clumb around all over it, and
by and by found a good big cavern in the rock, most up to the top on
the side towards Illinois. The cavern was as big as two or three rooms
bunched together, and Jim could stand up straight in it. It was cool
in there. Jim was for putting our traps in there right away, but I
said we didn't want to be climbing up and down there all the time.

Jim said if we had the canoe hid in a good place, and had all the
traps in the cavern, we could rush there if anybody was to come to the
island, and they would never find us without dogs. And, besides, he
said them little birds had said it was going to rain, and did I want
the things to get wet?

So we went back and got the canoe, and paddled up abreast the cavern,
and lugged all the traps up there. Then we hunted up a place close by
to hide the canoe in, amongst the thick willows. We took some fish off
of the lines and set them again, and begun to get ready for dinner.

The door of the cavern was big enough to roll a hogshead in, and on
one side of the door the floor stuck out a little bit, and was flat
and a good place to build a fire on. So we built it there and cooked
dinner.

We spread the blankets inside for a carpet, and eat our dinner in
there. We put all the other things handy at the back of the cavern.
Pretty soon it darkened up, and begun to thunder and lighten; so the
birds was right about it. Directly it begun to rain, and it rained
like all fury, too, and I never see the wind blow so. It was one of
these regular summer storms. It would get so dark that it looked all
blue-black outside, and lovely; and the rain would thrash along by so
thick that the trees off a little ways looked dim and spider-webby;
and here would come a blast of wind that would bend the trees down and
turn up the pale underside of the leaves; and then a perfect ripper of
a gust would follow along and set the branches to tossing their arms
as if they was just wild; and next, when it was just about the bluest
and blackest--_fst!_ it was as bright as glory, and you'd have a
little glimpse of tree-tops a-plunging about away off yonder in the
storm, hundreds of yards further than you could see before; dark as
sin again in a second, and now you'd hear the thunder let go with an
awfu