(From the publisher):
In this exciting new Merlin Mission, Jack and Annie go back in time to New York City, during one of the darkest periods in the city's history--the Great Depression. Even worse, the city is in the grip of a terrible snowstorm. To stop the blizzard, Jack and Annie must save the unicorn made famous in the Cloister's medieval tapestries. But will that be enough to help a city that faces so many troubles?
Original title: Blizzard of the Blue Moon
Genre: Fiction→ Children & Young Adult→ Historical Fiction
Fiction→ Children & Young Adult→ Adventure
Fiction→ Children & Young Adult→ Fantasy→ Time Travel