“ | When I unfastened the blackened silver clasp and opened the yellowed leaves a coloured drawing fluttered out—the likeness of a monstrous creature resembling nothing so much as a squid, beaked and tentacled, with great yellow eyes, and with certain abominable approximations to the human form in its contours. | „ | |
~ H.P. Lovecraft & William Lumley , The Diary of Alonzo Typer |
An Ancient One is a humanoid that has squid-like features and exists only partly in the physical, material dimension.