Mirrormask is the story of Helena, a fifteen-year old girl working for her family circus, who wishes - quite ironically - that she could run away and join the real world. However, she soon finds herself on a strange journey into the Dark Lands, a fantastic landscape filled with giants, Monkeybirds and dangerous sphinxes. Helena searches for the Mirrormask, an object of enormous power that is her only hope of escaping the Dark Lands, waking the Queen of Light so she can return home.