BLIZZARD OF THE BLUE MOON - Magic Tree House 36

History, mystery, and magic! Merlin has another mission for jack and Annie: to rescue a magical unicorn from New York City! They arrive during one of the darkest periods in the city's history - the Great Depression. Plus, there's a terrible snowstorm that threatens to get even worse. Where are they going to find a unicorn in the city? And who are the mysterious people following them?