The sheep owner flicked his cigarette ash into the tray, and looked at the lieutenant out of half-shuttered, indolent eyes. “Gave it to you, Bucky.”

O’Connor sat up. His blue Irish eyes were dancing. “You’re a cool customer, Cass.”

“Fact, just the same. Got that letter I handed you the other day?”

The officer produced it from his safe.

“Open it.”

With a paper knife Bucky ripped the flap and took out a sheet of paper.

“There’s something else in there,” Fendrick suggested.

The something else proved to be a piece of paper folded tightly, which being opened disclosed a key.

O’Connor read aloud the letter:

To Nicholas Bolt, Sheriff, Or Bucky O’connor, Lieutenant of Rangers: