"We've turned everywhere but _in_.

In the morning we'll turn out; then we will have turned everywhere." "We're flopping downstream pretty fast," said Brownie; "that's one sure thing." "I'm glad there's something sure," said Townsend.

It was as good as a circus to see him sitting against the tree with his knees drawn up, glancing this way and that with a funny look of patient resignation on his face.
"What do you say we put the tent up in the heart of the interior?
Then we'll be able to find it in the morning.

The unknown heart of the interior seems to be the only place we can be sure of.

At least it always stays inside.