Eve of the Emperor Penguin (Magic Tree House # 40)

Mary Pope Osborne, the author, combined her memories of watching the penjuins at the zoo with her research on Antarctica. She always mixes Memory, Research and Imagination plus JOY when writing one of the Magic Tree House series. Jack and Annie are searching for a secret of happines to share with MERLIN as they are whisked off to Antarctica the land of ice and snow and penjuins.