A shard of crimson stone, a magical elixir, and a painted doorway that opens to the past... During what seems like an ordinary museum visit, a tour guide lures Sunni and Blaise through a painted doorway, where they discover they've stepped into eighteenth-century London. When they realize their "tour guide" will do anything to learn what Sunni and Blaise know about magical paintings, they attempt to flee and encounter body snatchers,...