The Secret Triwizard Challenge

Normally you wouldn't be able to outrun the spider, but with the Jelly-Legs Jinx cast on it, you certainly can! You run like heck and make it to the exit just as the spider does. The eight-legged monstrosity is too big to fit into the maze, thank goodness, and shrieks in rage as it tries to reach you, but it is unsuccessful. You breathe a sigh of relief.
But you have no time to waste. You've got a race to win!