Five children staying in their eccentric uncle's labyrinthine mansion for protection during World War I befriend a sand fairy who has the power to grant wishes.Five children staying in their eccentric uncle's labyrinthine mansion for protection during World War I befriend a sand fairy who has the power to grant wishes.Five children staying in their eccentric uncle's labyrinthine mansion for protection during World War I befriend a sand fairy who has the power to grant wishes.