Simon, an avid amateur coffee drinker (he brews his coffee in a thermal mug and claims it is "espresso from the machine"), had just settled the most important question of the day with Zuza and Tom: whether the maths test was more sabotage or attempted murder. The huge gash of their high school, whose corridors had more twists and turns than the headmistress's logic during roll call, hid many secrets. But neither of them even imagined that the most interesting would happen right next to the candy bar vending machines. It all started at 8 a.m. on Wednesday morning, when Simon walked up to his locker number 213 and heard someone giggling from it. He stopped stiffly, because at that hour not even he was joking. At first he thought it was Zuzka - she knew how to do pranks, which he would memorise for matric. But when he opened the cupboard, the smell of candyfloss gushed from inside and the hair of Konrad, the school's heebie-jeebies wizard. "Dude, don't ask - this locker is a PORTAL!" exclaimed Konrad, pulling from inside a backpack strangely heavy and full of textbooks and.... a plush flamingo. Tom, who had just joined them, looked at the situation with his usual stoic expression: "It's definitely because of the new wifi at school." Before anyone had time to ask a question, locker 213 began to shake and a blue light flashed from inside it. They heard a quiet voice: "Who dares come in?" Silence reigned. Even the candy bar machines stopped buzzing. Simon looked at his friends. They all knew that something had just started - and their ordinary day at high school had just turned into something totally unpredictable....