Fiery magic in a land of ice, midnight intruders and murder by snakebite sweep John and Philippa Gaunt into their third fantastic adventure. After their friend Dybbuk Sachertorte sends an email pleading for help, the twins go save him; they cannot refuse. Dybbuk gives a mysterious painting leading them to Nepal to save their friends. In snowy Kathmandu, the children, along with Mr. Groanin, face the ultimate test of their amazing djinn powers. Can they uncover the venomous secrets of an evil Snake Cult to find the long-lost talisman of the Cobra King? Meanwhile, at home, their mother prepares to follow her destiny, which she has still kept secret.