Lexi and Lily Stannington are two identical fifteen-year-old twins who both attend Teddington High school. Both the girls are incredibly clever and are in the same alpha class; they each have a special gift, extrasensory perception. When they call into the Old Curiosity sweet shop on their way home from school, they never realised how important the note would be that the Irishman had slipped into Lily’s pocket. Who would have thought the note would contain directions to Manchester Cathedral. They discover a unique key in the crypt that takes them on an incredible adventure to participate in the Nibiru games. A planet so far away, It is only accessible by stepping through a time and space expander gate. Lexi and Lily had no idea what they were getting themselves into; the Nibiru wizardry council had selected them out of thousands of possibilities to play the Nibiru games, an event that only took place every five years and was watched by millions on the planet Nibiru. When Alatar, one of the twelve wizards from the wizardry council, meets them, he explains they must earn twenty-one points to advance and move from level to level. After completing a level, they can leave Nibiru at any time if they want to, but the prizes and the prize money becomes so appealing it becomes impossible to stop.