A world meeting had been held. The main topic of discussion: World Ignorance. To solve this issue, as that is what it is, the nations decided: To send their states, cities, counties - and whatever else they had - to a school on an island in the middle of nowhere that no nation, known or unknown, had claimed. The school had to be large enough to hold hundreds, possibly thousands, of 13 to 17 year olds and strong enough to withstand at least 51, possibly more, with super strength. it had to be able to accommodate several, possibly more than a hundred, magical cities, states, counties, etcetera...
And that is where we find London. On a plane next to her 'Dad' coming in to land on the large runway next to the school.