Spring

Huginn: At the beginning of the world, we had seasons.

Muninn: Do you remember why?

H: I think it was axial tilt, or some such thing which the Earth was said to have.

M: The world tilted when he shattered the face of the Moon, if you remember.

H: No, I don't. I used to know these things... why don't I remember anymore?

M: Poor dear. You were caught in the heat of the angelic uprising, and your essence was burnt in the great fall. We are two of the Unfallen, and there are more of us.