Teddy Lupin-Potter lives with his Godfather/father Harry James Potter at Number 12 Grimmauld Place. During one of the many fights between Harry and 'Aunt' Ginny, Teddy enters the personal study of Arcturus Black with the help of Kreacher and comes across a long thought mythical item, the Sickle of Cronus.

As Seven Hundred and Seventy Thousand players enter the World of GAIA, Harry Potter; a Fourteen-year-old student from Hogwarts School of Witchcraft and Wizardry along with his two close friends, Ronald "Ron" Weasley and Hermione Granger along with others are transported into the digital world of GAIA ONLINE.

As Harry James Potter's fourth year begins, plans come forward to both protect and harm him. Once his name flies out of the Goblet of Fire, Harry and others from Hogwarts, Durmstrang, Beauxbatons, Ilvermorny as well as the mysterious african school of Uagadou, soon find themselves trapped along with Muggles and animal over 65 million years old.