Art is by

Fantôme is a monster whose motives are unclear. Neither a friend of Ghost or of Dog, it appeared during an intense thunderstorm. Appearing to those despairing, in pain, and depressed; Fantôme is something of a harbinger, but not of death. At least, not death of the physical body.
Pierre is terrified of Fantôme but for reasons he refuses to say. His beak is kept tightly closed. Fantôme seems to know him, and can often be found perched on Pierre's house.

Fantôme's vocalizations vary from soft hissing noises to loud siren-like wailing. It cannot speak, but can make soft chattering noises that sound like muffled human speech.
Ghost knows of Fantôme but does not speak of it. The message Fantôme brought her is something she refuses to tell anyone, even when demanded by Pierre.