Original title: Hilja ja täydellinen talvipäivä
Author: Heidi Viherjuuri
Illustrator: Nadja Sarell
Genre: Chapter Books (6-9 Years)
Part of a series: Hilja series
Cousin Martti comes to visit Hilja, and it can mean only one thing: a full week of snow fun! Snowball fights, skiing trips, ice-fishing competition and other winter adventures become so wild that Mom needs to put an end to it. But Hilja knows how to make even the most boring day fun!