Mormo

Mormo appears in Greek sources as a terrifying female figure invoked to discipline children — a 'bogeyman' of the ancient world. In some traditions she was a Corinthian queen who ate her own children and now preys on others'. She was closely associated with Lamia and Empusa as a class of child-devouring female demons, and the Mormolykai (her lesser minions) were named after her.

Depicted as a monstrous woman, often lame or deformed, who could change her shape. Some accounts show her with the features of a horse or cow. Her defining characteristic was an enormous hunger and the ability to appear suddenly to snatch children.

Shape-shifting. Could appear in dreams to terrify children. Associated with the power to cause illness and wasting in children who had been frightened by her. Her name alone was considered a powerful invocation that could summon minor terrors.