Jack and Annie are off on another adventure, this time to the Arctic. They make some furry friends and even get to see the magical Northern Lights, but can they solve the last riddle in order to become Master Librarians? They'd better hurry, its getting colder by the minute, and their pyjamas weren't meant for sub-zero temperatures!

 

This book features in the following series: Magic Tree House, Young Hippo .

There are 80 pages in this book. This is a picture book. A picture book uses pictures and text to tell the story. The number of words varies from zero ('wordless') to around 1k over 32 pages. Picture books are typically aimed at young readers (age 3-6) but can also be aimed at older children (7+). This book was published 2001 by Scholastic .

Mary Pope Osborne is the author of over forty books for young people. She was the president of the Author's Guild, the leading organization for professional writers in the US, for two years and has won many awards for her books. She lives in New York with her husband, Will, and their dog, Bailey, who sleeps on top of Mary's desk every day while she writes.