Mirrormask is the story of Helena, who works for the family circus and wishes that she could run away and join real life. But this is not to be the case as she finds herself on a strange journey in the Dark Lands, a fantastic landscape filled with giants, Monkeybirds and dangerous sphinxes. Helena must search for the Mirrormask, an object of enormous power that is her only hope of escaping the Dark Lands, waking the Queen of Light and returning home...