Jack has always wanted to meet a unicorn, and with its black coat, golden hooves and truth-telling powers, the magical xiezhi is the most amazing unicorn ever! But when the xiezhi accuses the Jade Emperor of a crime, Jack doesn't know what - or who - to believe. Can Jack harness rat's power over the weather and find out the truth? One thing's for certain, a storm is coming... A thrilling action-adventure series with the magical power of the Chinese Zodiac.