Ophelia and the marvelous boy

Ophelia, a timid eleven-year-old girl, is still grieving her mother when her father takes a job in a museum located in a city where it never stops snowing. Ophelia is forced to suspend her disbelief in things non-scientific when she finds a boy locked in the museum where her father works. The boy, a prisoner of the Snow Queen, asks Ophelia to help him complete an age-old mission and save the world.