Sami loves hearing Sitti's stories filled with magic spirits. When her grandmother falls ill, her family decides it's best to send her to a nursing home. Sami doesn't think Sitti is sick at all. Before she can be sent off, Sami uses her grandmother's spellbook and casts a spell that goes awry. Instead maker her grandmother better, Sami has opened a portal to Silverworld through her mirror. There she finds an enchanted city with creatures of light and darkness. The creatures of light have started to disappear. Could this have anything to do with her grandmother's sudden and mysterious illness?