The testimonial is signed by Conrad
Geisler, who is now Mr. Merrill's partner.
Well, there is not much more to tell of this part of the Border Boys'
adventures. As it may be of interest, however, to relate the further
history of the underground river and the Haunted Mesa, we shall set it
down here. Ramon escaped from the general disaster to the insurrectos
at the Esmeralda Mine, and apparently rode straight from there to the
mouth of the underground river he had long used to such good advantage.
At any rate, when the boys visited it later, they found that a
cunningly set explosion had completely blocked the passage for
navigation, and the secret route of the forgotten race was forever
closed to man. As for the Mesa, you can read all about it
scientifically described in Professor Wintergreen's monograph on the
subject.
The ponies and the redoubtable One Spot, Two Spot, and Three Spot were
located at the Mesa, where they had been left in charge of Ramon's men.
All were fat and in good condition, and Firewater was very glad to see
his young master again.
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