Sun and Moon is a fantasy story about conflicts between opposites. The story takes place in a fictional medieval kingdom named Ryhmin. Ryhmin is being tested by its surrounding wilderness, where the greater spirit Muinein controls the events of the story. Disagreement about the use of magic has divided the people of Ryhmin. Some see magic as an opportunity to better the world, others fear it will lead to Ryhmin's destruction. Is there a balance?

Two dwarves have been sent to retrieve a magic ring from the elves, but the ring of power has a will of its own. The Elven King has to decide how to deal with the dwarves.