When Hiccup discovers Toothless isn't the only Night Fury, he must seek "The Hidden World", a secret Dragon Utopia before a hired tyrant named Grimmel finds it first.
Instructions: Use all kinds of devices (Android, IOS, Windows, Linux) but make sure of the internet browser (Edge, Internet Explorer, Chrome, Firefox, Opera, Safari) settings ‘Cookies, JavaScript and Content or Web Content’ should be set to ‘Allowed’.