Penny Preston is just trying to figure out what the mist-figures in the corridor outside the school cafeteria are and what they're doing, when she accidentally opens a transdimensional rift and starts a food fight. It's not any great surprise that, though it takes a bit longer than she expected, she's soon enough sitting in the office of Mr. Myrdin.
It is a surprise that she's not there to be disciplined for starting the food fight. Two other students have been blamed for that, and being as unaware as everyone else of Penny's involvement, they've accepted it. No, Penny is there because the only other person who noticed the strange creatures is Mr. Myrdin. He wants to talk to her about the fact that she's "misaligned," existing in more than just the usual three dimensions, and thus an important key to stop transdimensional beings from attacking and destroying our universe.









