Lost Mine of Phandelver
A nothic is a monstrous creature with terrible talons and a single great eye. When driven to violence, it uses its horrific gaze to rot the flesh from its enemies’ bones.
They communicate telepathic and serves as guardians for payment of fresh flesh and treasures. They kept small wooden boxes with all the treasures they collect,
Tales mentions of powerful wizards transformed into this lunatic creatures due to failed magical experiments.
The party found a nothic in the basement of the Rebrands hideout. They tried to feed it with milk.