At times Dallas even wondered if they were on the right trail.

And how was he to reach it even though chance might put him on the right trail?

Surely, this woman had some information that could set him on the right trail.

He had the right trail, so the false one didn't fool him.

"I am beginning to wonder whether we are on the right trail," she concluded.

The police, however, have struck the right trail and are in close pursuit.

"We've got someone here to set us on the right trail."

"Nothing like coffee to set a man on the right trail."

"We might not be on the right trail," suggested the other.

"Then we'll strike east and try to find the right trail."