Casey liked the Shrieking Shack because it was the place she used to escape with Lily too. Lily had to transform somewhere while she had attended Hogwarts, and the tradition seemed the be the Shrieking Shack. Under the Wolfsbane, Casey was able to sit in the other room while the wolf ran about, chewing on anything it could sink its teeth into. Casey wasn't afraid. If she did get bit or killed, she would have deserved it anyway. But it never even got close to that. The wolf liked her, and Lily was always in enough control to make sure she was never harmed.
It was a sad reminder now, that was true. Lily and Casey did not speak anymore. How their relationship had gone from the sort that Casey went to America rather than be separated from her cousin, Casey could not answer. Lily had cut her out, run away, lied to her, let her worry and cry and think she was dead. And then when she came back, Lily hadn't been brave enough to say a word to her, let alone an apology. Sure, Casey would still mutilate anyone who spoke against her cousin, but she could not do much to speak for her anymore.
Still, it was nice to look at the shack and think of a time when things were total shit. She was roused from her musings, however, when a girl crept around the Shack and scrambled through a broken window. Casey looked around and, seeing no one else, decided to investigate. One hand on her wand, she scrambled over the fence and hurried down the hill, before climbing up the other side to the shack.
She slipped through the window and paused in the empty front room - it seemed others had transformed here since the last time she had been here. Perhaps Lily had come on her own. The thought struck a blow to Casey's heart, but she was soon distracted by a squeak from a floorboard upstairs. Casey slowly took to the stairs, moving quietly, stealthily, like a cat chasing a mouse.
She reached the second floor landing and, upon turning around the hallway, saw a figure rested against the wall. She pulled out her wand and then hesitated. "Naomi?"