This is another entertaining, fast, fun book from Clive Cussler. It is set in 1907 when the railroads were scrambling to beat out the competition and a panic on Wall Street has spread economic fears throughout the country. Someone keeps sabotaging the Southern Pacific railroad and it's owner is furious. He wants to complete a section of rail through the Cascades before winter sets in, and financial ruin. He brings in the Van Dorn detective agency, and specifically Isaac Bell. Bell is handsome, intelligent, and resourceful but the villain manages to elude and wreak havoc on both coasts however eventually Bell gets his man.
We know who the villain is halfway through the book, and know that Bell would eventually find him, the big questions were why he was doing it and how would Bell manage to stop him. It was a fun book to read, pretty much nonstop action. Cussler is reliably clean, very little profanity or sex, even though Bell and his fiancee manage to spend a few nights together. There is some violence with the villain having a surprising method of killing his victims. Rated PG-13 for the violence and some adult situations and some profanity.