After a treasure hunt gone wrong, Tristin, a plucky teen, finds herself trapped in a supernatural land of monsters. Unable to return home, Tristin enters the care of Mara - a grumpy recluse with strange powers and a stranger past. Between giant house cats, masquerade balls, and a mysterious man with malevolent motives, the cards seem stacked against this odd couple as they try to make the best of a less-than-ideal situation.