Off to wintery New York in the 1930s! Philipp and Anne arrive in snowy New York with the magical treehouse. A mythical creature urgently needs their help! Hidden in the big city for over 400 years is a unicorn under a magical spell. Only on the night of the twin moons can the siblings break the enchantment. However, two mysterious pursuers are hot on Anne and Philipp's trail as they search for the unicorn! Based on the original edition "The Enchanted Unicorn." Shortened and adapted for reading aloud, with many colorful illustrations. Help Philipp and Anne rescue a magical being from great danger! An exciting quest, an enchanted unicorn, and dark magic. The beloved children's book series by bestselling author Mary Pope Osborne for reading aloud and independent reading. Siblings Anne and Philipp travel through time with the magical treehouse, discover distant lands, fascinating animals, and experience thrilling adventures. For children aged 6 and up.