[crutledge]

Clarence Young was a house pseudonym used by the Stratemeyer Syndicate for series of books for boys, the most well-known being the "Motor Boys" series.

While at the mine the boys, through a learned professor, learned of a buried city in Mexico, said to contain treasures of vast importance. Their curiosity was fired, and they arranged to go to Mexico in their touring car, and the present volume tells how this trip was accomplished.