Before their parents can return the "inappropriate" gift, the train—named La Flecha Plateada —whisks the siblings away on a magical railway.

The file "r1.0.epub" refers to a common versioning format for electronic book files. Length: Approximately 256–272 pages.

The story follows 11-year-old and her younger brother Tom , who live quiet, unexciting lives until their mysterious and wealthy Uncle Herbert sends Kate a colossal, full-sized steam locomotive for her birthday.

Kate and Tom discover that the train is meant to transport talking animals , such as a porcupine, a polar bear, and a baby pangolin, to their native habitats.

As they travel, the children learn about the environmental damage caused by humans and take on the responsibility of saving these endangered creatures. Book Details Spanish Title: La flecha plateada . Original English Title: The Silver Arrow (2020).