Jason the Agronaut infuses the naturalism of a modern story and infuses it with myth to create a fantastic narrative.
Step-by-step explanation:
The narrative begins when Jason and his men land on a new strange land and are in turn made to accept an offer of the king of that place for a feast in their quest for the Golden Fleece. The King knows this and is planning to avert that.
The conflict that the story rests on is the Golden Fleece which is mythical but the things that happen in the story are very naturalistic.
Even Medea, the figure of mythology is presented here with a tinge of realism and it makes the story much more rich.