Their magic tree house takes Jack and Annie to the Arctic, where a polar bear leads them onto very thin ice.
"RL: 2.1" --|||440L Lexile|||570L Lexile|||juvenile
by Mary Pope Osborne ; illustrated by Sal Murdocca.
"A Stepping Stone book."
Publisher and edition may vary.
Accelerated Reader AR LG 3.3 1 18742.
