Rhianna's magic still isn't under control—but she has to harness it when she accidentally brings two iron dogs to life . ., and causes chaos in her kingdom. When her blacksmith father takes a strange girl as his apprentice, Rhianna feels that no one cares about her anymore. Filled with jealousy and hurt, she uses her Wild Magic in anger—and brings two dogs of iron to life. Suddenly, her world is in danger—not just from the dogs, but from evil forces who will want to use Rhianna's unwieldy power for their own benefit. It is up to Rhianna and the new apprentice, Eriseth, to put things right.