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Somewhere in time
A small smile swirled unconsciously about the Potion Master's lips. A display of emotion so faint, no one could bring himself to really believe it. The man himself seemed completely unaware of his actions. Almost starring into the space ahead, not seeing anything. No students, cauldrons, potions. Nothing. And still there was the smile.
A memory. A memory of a time long forgotten. He had been sitting on a windowsill near Gryffindor tower, but not near enough to be found easily. Lily had been there, sitting opposite of him. They were holding hands. They had no use for words. Both knew exactly what the other was feeling. Peace, belonging and love clearily readable on both their faces.
With a jolt the professor came back to himself, seeing the students starring at him for the first time in decades. Summoning his best glare he hissed: Get back to work!
They complied immediately, except for one. Harry Potter held his gaze a moment longer. He did not try Legilimency. He wasn't that stupid. But it seemed he had learned to read his professor a bit too much for comfort. The older man broke that gaze abruptly, striding back to his desk and assuming an air of irritation. Potter could do nothing more than return to work as well, but there was a hesitation in every step he took now, as if still thinking how to react to such a display of emotion.