The First Death of an Immortal by the Hands of Yharm

The First Death of a God - The Killing of Elune, the Goddess of the Moon, Change, and Magic by the Hands of Yharm
This was the first instance of an Ethereal being getting killed in the entirety of the history of the world. There are no other cases of a God or Goddess getting killed, but in the Era of Demise, Yharm gained the strength and power to absolutely eviscerate the Goddess of the Moon, Elune. This sparked the full out attack on Yharm and her minions.
It is said that the destruction of Elune was sudden and not foreseen, but it caused massive tsunami's all over the world as it is said that the moon disappeared for years and years, causing Terra Firma's wave patterns to forever change. The moon was said to have turned blood red when it finally appeared again after years of pitch black nights.

Summary

This myth is about the fact that, supposedly, an immortal, a Goddess, was killed by the hands of Yharm, the Goddess of Death. It is said that it is impossible to kill a God or Goddess, but somehow, Yharm managed to find a way to kill Elune, the sister of Oceania.

Historical Basis

It is unknown if this is actually true, since anyone who would have been alive during this moment in the Era of Demise is long gone. So this death, and the repercussions of it, are absolutely unknown to be true or not.

Spread

This myth is pretty far spread, being considered true by most religious people, especially when talking about Oceania, as the Book of Oceania strictly states that this is all fact.

Variations & Mutation

There are few variations, but many involve the repercussions of the death of Elune. Some say that the moon disappeared for years, some say the moon turned blood red, things like this are the only variations.

Cultural Reception

This is perceived to be totally factual, but it is totally unknown if it is indeed true or not.

In Literature

There are many different documents stating the death of Elune. Most are religious books, of course, but it is absolutely unknown if this is actually true or not.

In Art

There are many different pieces of artwork documenting this incident. Tapestries, paintings, stained glass, etc.

Date of First Recording

Unknown exactly when.

Date of Setting

104378 ED