"Perhaps we can follow their trail and find the way out of here."

But last night he left the city, and we followed his trail here.

It was the only way to make sure of following their trail.

We can follow their trail, but they have many hours' head start.

And now to figure out how to follow the trail from here.

Now they were following the trail to its source, two million years later.

He did not have to see to follow the trail.

In the morning, maybe we can follow her trail, but not now.

We've been looking all over for you We tried to follow your trail, but there wasn't much.

Following the trail was slow, hard work from the start.