Eve of the Emperor Penguin (Magic Tree House Merlin Mission Series #12)

JACK AND ANNIE continue their quest for the secrets of happiness—secrets they need to save Merlin. This time, the Magic Tree House takes them to the one continent they haven’t visited before: Antarctica! What can they hope to learn about happiness in such a barren place? Only the penguins know for sure . . . Jack and Annie are about to find out!