In June 1863 an English lady set off by train on the trip of a lifetime: Thomas Cook's first Conducted Tour of Switzerland. A century and a half later, travel writer Diccon Bewes, author of the bestselling Swiss Watching, decided to go where she went and see what she saw.

Guided by her diary, he followed the same route to discover how much had changed and how much hadn't. She went in search of adventure, he went in search of her, and found far more than he expected. Slow Train to Switzerland is the captivating account of two trips through the Alps: hers glimpsing the future of...