Nat explained the receipt of his uncle's invitation.
"We were just wondering who would make the third member of the party, when you came in," he said, "and we both decided on you."
"It was very kind of you to invite me," John said. "I guess I can arrange to go. Where is this ranch?"
"Near Denville, Colorado," replied Nat.
John started and looked at Jack.
"Nothing the matter with that place, is there?" asked Jack.
"No. On the contrary it couldn't be better," replied John. "That's where we want to go to settle the mystery—"
He stopped, evidently on account of Nat's presence.
"Oh, Nat knows all about it," said Jack. "I see what you're driving at."
"Yes," went on John. "Denville is not many miles from Denver, and at the latter place, you remember, we can go to the Capital Bank, and get the address of Orion Tevis."