It's icicle city when the Magic Tree House whisks Jack and Annie to the frozen Arctic.

Author: Mary Pope Osborne

Format: Paperback

Published: Random House, 1998

From the publisher:  It's icicle city when the Magic Tree House whisks Jack and Annie to the frozen Arctic. Luckily, a seal hunter on a dogsled lends them warm clothes. Unluckily, they get stuck on cracking ice. Will the giant polar bear save them? Or will Jack and Annie become frozen dinners?