Tom and Lea are off on another Merlin Mission. This time, Merlin has sent them to rescue a beautiful magical creature-the unicorn. But when they land in New York City during the Depression of the 1930s, Tom and Lea are confused. Where will they find a unicorn in a big city?Tom and Lea are off on another Merlin Mission. This time, Merlin has sent them to rescue a beautiful magical creature-the unicorn. But when they land in New York City during the Depression of the 1930s, Tom and Lea are confused. Where will they find a unicorn in a big city?