Character: Remus Lupin
Theme: Sanity
Every full moon his sanity escapes him, but he cannot lose it now. Not when Harry depends on him. His last best friend falls through the veil, and he can't follow after. He wants to follow. The webs of insanity woven through his mind make that veil's stillness tempting, its voices whisper a welcome. But he is sane.
And being sane, he clings to his best friend's son and tells him that he can't go after Sirius either. Harry is his anchor, just as much as he is Harry's.
And being sane, Remus realizes that the world is insane.
A/N: For ModernDayRapunzel, who suggested the prompt sanity.