Tom Swift and His Big Tunnel, or, the Hidden City of the Andes

pubOne.info thank you for your continued support and wish to present you this new edition. Tom Swift, seated in his laboratory engaged in trying to solve a puzzling question that had arisen over one of his inventions, was startled by a loud knock on the door. So emphatic, in fact, was the summons that the door trembled, and Tom started to his feet in some alarm.