Djinn twins John and Philippa Gaunt are back and ready to tackle a brand-new magical mystery. As they travel around the world on a whirlwind adventure, the twins help their friend and fellow djinn, Dybbuck, find out who murdered his best friend, using the venomous snakebite of the king cobra. All too soon, John and Philippa find themselves caught up in the lethal world of the Cult of the Nine Cobras, only to discover that they are a target of the creepy cobra cult. Now, the twins must find the invaluable Cobra King talisman and stop the cult leader's deadly plan!