When Reese and Dean return to the magical Erutuf National Park, they encounter their coldest challenge so far-in the park's Arctic.

Here they meet Ty, an entertaining, talking polar bear with a crucial mission. Ty reveals a secret map that must be found and hidden before a group of determined pirates can seize it.

Can the siblings navigate this icy region and outsmart the cunning pirates? Find out in this thrilling third book in the series as Reese and Dean embark on a journey of bravery, teamwork, exploration, and the unbreakable bond of family to protect this magical national park!