The Motor Boys in Mexico: this is the third volume in the Motor Boys Series. The teens have a lot of money: in the first volume, they won a good deal of it by winning motor-cycle races; in the second volume, they shared in the proceeds of a gold mine in the west. But, who doesn't want more money, treasure and adventures? So, with their friend Professor Uriah Snodgrass, they turn their touring machine south in quest of a city with untold treasures said to have been buried centuries ago by an earthquake. But their enemy Noddy Nixon has heard of the treasure and tries to thwart them at every turn, including kidnapping Bob. And, the wild animals of Mexico, including jaguars, cougars and alligators threaten to end their trip a little early!
Clarence Young was a Stratemeyer Syndicate pen name. Howard Garis probably wrote the series, although Stratemeyer usually provided his authors with an outline of the books. Garis and his wife, Lillian, wrote many children's books under their own name. They are best known for a series of books that featured the character of Uncle Wiggily Longears, an engaging elderly rabbit. Many of Garis' books were illustrated by Lansing Campbell. Garis and his wife, Lilian Garis, were possibly the most prolific children's authors of the early 20th century. Garis wrote many books for the Stratemeyers Syndicate as well, over a period of some 30 years.