Kaveh came from a group of aquatic creatures that humans call sirens. A long beautiful turquoise mermaid tail, jewelry made of precious underwater stones and earrings are large, red, matching the color of Kaveh's scarlet eyes.

Kaveh is the son of the leader of their underwater tribe, an enviable groom for all the girls in the area, but he did not have time to marry a beautiful mermaid

A couple of weeks ago, Kaveh quarreled with his mother and sailed to the embankment, sit on a rock and sing beautiful songs with his magical voice, which attracted robber hunters. These dirty people caught a strange creature and sold it for crazy money, giving it to some scientist on the outskirts of the city. The scientist's name is Alhaitam, as Kaveh learned when he was sold in a large aquarium. There are many different things of the magical world in his house, many glasses with luminous substances, skulls of fairies and similar creatures. The wings of hypnotic butterflies, the fangs of saber-toothed wolves and a desk opposite the aquarium, where his new buyer is now sitting and writing something in some book