“Plunged at length in its twilight glooms, I spied before me something with a shine, standing between two of the stems. It had no colour, but was like the translucent trembling of the hot air that rises, in a radiant summer noon, from the sun-baked ground, vibrant like the smitten chords of a musical instrument. What it was grew no plainer as I went nearer, and when I came close up, I ceased to see it, only the form and colour of the trees beyond seemed strangely uncertain. I would have passed between the stems, but received a slight shock, stumbled, and fell. When I rose, I saw before me the wooden wall of the garret chamber. I turned, and there was the mirror, on whose top the black eagle seemed but that moment to have perched.”