The illustrated Bestiary of Creatures starting with the letter...

Naga

The Naga is an aggressive creature. They can appear in the form of a serpent with a human head, or from the waist up they take human form whilst the lower half of the being is of a long serpent’s tale. They can also morph into either full serpent or human form. Naga’s are found roaming on land or at sea, usually not too far off the shore along the coast. So next time whilst standing in the shallows of the beach, keep an eye out!