Aspiring young reporter Kate and her accomplice, Rupert the mouse, travel by train to visit Kate's mother in the Arctic.

But as soon as the train departs, mysterious things start to happen.

A package of gingerbread cookies goes missing...
A collection of gymnastics trophies is stolen...
And ancient scrolls disappear...

Passenger Madame Maude seems to be the main suspect, until an unexpected—and delicious—twist turns the entire investigation upside down.

• Language ‏ : ‎ Spanish
• Print length ‏ : ‎ 160 pages
• Reading age ‏ : ‎ 6 - 8 years