The best plan seemed to be to try and get to the top of a rise in the hope of seeing the lights of the city, but all the countryside was so pockety that it was hard to strike the right kind of rise.
We had to trust to Peter's instinct.

I asked him where our line lay, and he sat very still for a minute sniffing the air.

Then he pointed the direction.

It wasn't what I would have taken myself, but on a point like that he was pretty near infallible.
Presently we came to a long slope which cheered me.

But at the top there was no light visible anywhere--only a black void like the inside of a shell.