It's not the first time this has happened. Every month, on the full moon, your friends disappear, and the next day you find them tired, especially Remus covered in scratches. Every single month without exception. You weren't foolish; you noticed it a long time ago, but now, in this moment, everything clicked.

Remus recognized the look in your eyes; his hands fidgeted nervously. He knew that you knew, and he feared that your friendship would be ruined because of him. "What is it?" he asked, his voice barely audible, trying to pretend and hoping that the intense gaze in your eyes, staring directly at him, didn't mean what he feared.