Tom Swift and His Big Tunnel: The Hidden City of the Andes (Unabridged‪)‬

Volume 19 of the Tom Swift series, Tom Swift and his Big Tunnel finds our hero in Peru, South America, along with his friends, Koku the Giant and Mr. Damon blasting his way to the Andes Mountains using a new explosive developed by the young inventor. Of course there are plenty of thrills in this volume. What would you expect with an explosive more powerful than dynamite, and dealing with a new set of villains.

This volume published in 1911 contains language and attitudes that were appropriate 100 years ago, however are not politically correct today but overall a thrill-a-minute cliffhanger.