Tom Swift and His Big Tunnel

A massive mountain stands between two railroad lines in Peru, and time is running out. The Titus Brothers have a government contract to blast a tunnel through impossibly hard rock, and their conventional methods have failed. Enter Tom Swift: young inventor, engineering prodigy, and possessor of a legendary giant cannon. He's called upon to develop a revolutionary blasting powder capable of shattering the unyielding stone before the deadline expires and their rivals claim the contract. But the adventure doesn't end at the tunnel face. Tom's friend Mr. Damon drags him into a parallel mystery: his cinchona bark business in Peru has dried up, and someone or something is blocking the supply of this precious material. The two threads intertwine as Tom travels to South America, where he must outthink greedy rivals, navigate dangerous terrain, and invent his way out of problems that have stumped the best engineers in the business. This is early American adventure fiction at its most gleeful: a celebration of ingenuity, persistence, and the belief that any problem can be solved with enough brains and determination. Perfect for readers who want their action served with a side of mechanical marvel.