Tom Swift and His Big Tunnel
1916 novel by Victor Appleton

Tom Swift and His Big Tunnel, or, the Hidden City of the Andes, is Volume 19 in the original Tom Swift novel series published by Grosset & Dunlap.
Plot summary
The Titus Brothers Contractors company have won a government contract in Peru to blast a tunnel through a mountain and connect two isolated railroad lines. The deadline is approaching, and the contractors have hit a literal wall: excessively hard rock which defies conventional blasting techniques. The company is under pressure to finish, or else the contract will default to their rivals, Blakeson & Grinder. Mr. Job Titus has heard of Tom Swift and Tom's giant cannon, which is used in protecting the Panama Canal, and wants to hire Tom to develop a special blasting powder to help them finish the excavation.
Mr. Damon, Tom's very good friend, arrives in the middle of this conversation, and is unaware of the situation. By coincidence, Mr. Damon is invested in a business which procures cinchona bark from Peru, but production has all but ceased, prompting Mr.
The public source identifies “Tom Swift and His Big Tunnel” as 1916 novel by Victor Appleton. This brief keeps that definition visible, then builds a research path around Swift, Tunnel and novel.
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This entry incorporates text from “Tom Swift and His Big Tunnel” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.