• I am SHADOW, and my dwelling is near to the Catacombs of Ptolemais, and hard by those dim plains of Helusion which border upon the foul Charonian canal." And then did we, the seven, start from our seats in horror, and stand trembling, and shuddering, and aghast, for the tones in the voice of the shadow were not the tones of any one being, but of a multitude of beings, and, varying in their cadences from syllable to syllable fell duskly upon our ears in the well-remembered and familiar accents of many thousand departed friends.

    Edgar Allan Poe (1857). “The Works of the Late Edgar Allan Poe: Poems and tales. Eureka, an essay on the material and spiritual universe”, p.294