The Wicket Gate (gen)

[platonic version] The spring of Severus's fifth year wasn't so much one long nightmare as one of those tooth-rattling roller coasters that turns you upside down, spins you like a top, bangs your skull repeatedly against the headrest, toys with free-fall—and looks, to your friends on the ground, at least as horrifying as it feels. Not that those don't have their moments...