A luxury ski retreat in the Swiss Alps was supposed to encourage inter-house unity. Instead, it trapped Harry Potter, Hermione Granger, Ron Weasley, Cormac McLaggen, and an entire group of deeply unsupervised Slytherins inside a five-star chalet during a snowstorm. Now there are illegal poker games, emotional warfare, ski-related property damage, dangerous levels of romantic tension, and at least three ongoing public incidents involving Mattheo Riddle. Hermione is one intellectual debate away from homicide. Ron is being spiritually overwhelmed by rich people behavior. Draco Malfoy is losing a psychological battle against nature itself. Meanwhile Theo Nott has become beloved by the entire Swiss village, Lorenzo Berkshire keeps gaining access to places he should not legally enter, and the Slytherins are functioning less like students and more like a beautifully dressed criminal organization in cashmere.