The first half of the book chronicles their journey north.

And then, in that last year, came the great journey north.

But it had taken him years to develop the skills necessary to survive a journey north.

I nodded, and the conversation turned then on the reasons for his journey north.

It remained so three days later, when the two men began their journey north.

There was little chance of being taken by surprise, no matter how dangerous this journey north might be.

It was on a journey north that he began to understand them.

We needed food and warm clothing in order to survive the journey north.

It was nightfall as we started our long journey north.

The plane had already reached the coast of America and turned, beginning its journey north.