What does it take to pass into another world? The magic in this world is dying. Prophecy tells how the creatures of magic must be moved to Shiri-la before they die with it. The unicorns must ensure this happens, and the Keepers must protect the unicorns. Tangea Ash is a Keeper, but even her unicorn Silverwood questions why she was chosen. Magic binds her to darkness. But there is always a reason. And all must learn to have faith.