Horace Slughorn: I once had a fish. Francis. He was very dear to me. One afternoon I came downstairs, and he’d vanished. Poof.

Rubeus Hagrid: That’s very odd, isn’t it?

Horace Slughorn: It is, isn’t it? But that’s life, I suppose. You go along and then suddenly, poof!

Rubeus Hagrid: Poof.

Harry Potter: Poof.

Horace Slughorn: It was a student who gave me Francis. One spring afternoon I discovered a bowl on my desk… with just a few inches of clear water in it. And floating on the surface was a flower petal. As I watched, it sank. Just before it reached the bottom… it transformed… into a wee fish. It was beautiful magic. Wondrous to behold. The flower petal had come from a lily. Your mother. The day I came downstairs… the day the bowl was empty… was the day your mother…

From Harry Potter and the Half-Blood Prince (2009) | Produced by Warner Bros.