Short standalone that's part of a longer work. Ah yes. That overused plot device, the Boggart. We meet again...
From the Unofficial Portkey Archive: https://portkey-archive.org/story/4502/
Author’s note: The standalone is now uploaded to the original, so, yeah. There you go. Here’s the link to the shortie if you’re still interested. By the by, thanks to those who reviewed “Boggart.” It made finishing Unfinished that much easier.