Hm… I’ve lived amongst elves for some time, and I could share you the story about the great elf Maëdur?
A long, long time ago, when the earth was still new the elves lived amongst the gods and were immortal. Maëdur was so powerful that when he was born he drew so much of his mother’s life energy when he was born that she grew weary of living and her spirit voluntarily left her corporeal form, leaving her family for the garden of Greenwood. His father remarried had four more children, Maëdur's half-brothers. Maëdur did not like his stepmother Indis and so lived apart from her and his half-siblings. Maëdur wedded Nerdanel who bore him seven sons.
From young age, Maëdur was considered amongst the best of elves, both in sword fighting, poetry and crafting. In the greatest of his crafting achievements, Maëdur captured the light of the Tree of Life to make the three Sethiels, also called the Great Jewels. He prized the Sethiels above all else, and grew increasingly suspicious that the Gods and other elves coveted them, and as such Maëdur alternated between vainly displaying the jewels and jealously guarding them from all but his immediate family.
Meanwhile, Loki, the mightiest of the Gods but a great source of evil, was released from his prison and begged to return, telling them that he had repented of his evil ways. After some time he was pardoned, for the Gods wanted to forgive their brother. He undertook to corrupt some of the elves and succeeded in making them instruments of his malice, particularly Maëdur. Although Maëdur greatly mistrusted Loki, the fallen God used this as part of his plan to get the Sethiels from Maëdur.
Loki coveted the Sethiels and his hatred for Maëdur grew, but hid his intentions from the elves and the Gods. Loki played upon Maëdur's pride to convince him that his half-brother Eldon was not only planning to usurp his place as heir, but also seize the jewels for himself. Maëdur's hostility grew to the point to where he threatened Eldon's life, leading the elves to forge weapons for the first time. For this, the Gods exiled him to Namos. He took a substantial treasure with him, including the Sethiels which he put in a locked box. In a show of support for his eldest son, his father also withdrew to Namos.
When the Gods realized that Loki's role in the conflict, they sent Turion to imprison him again, but he could not be found for some time. He unexpectedly showed up at Namos where he tried to convince Maëdur with his lies. Since in father and Maëdur's absence Eldon had become king, Loki's tales could be seen as true. However, Maëdur realized that Loki's true goal was to obtain the Sethiels. He shut the door in Loki's face and Loki left in a rage. When the Gods heard of this they took up the hunt but realized that Loki had fled from the land of the Gods. The Gods sought to mend the breach between Maëdur and Eldon, and invited them back to the land of the Gods to make peace – and Eldon grudgingly offered a hand to his half-brother, recognizing Maëdur's place as the eldest.
At this point, Geir looked up at the shop keeper, hoping he still had his attention. “What do you think so far?”. He then continued:
Loki stole away to the south of Aman to seek out the evil, scorpion-like creature Gormôt and secured her as an ally. During the festivities where Maëdur and Eldon reconciled, Gormôt helped Loki destroy the Tree of Life, bringing darkness to the land of the Gods. Loki and Gormôt then went to Namos. Loki, surrounded by an impenetrable black fog, went to Maëdur's vault in Namos. Maëdur's father, the High-King fought valiantly, but in the end lost against Loki and was the first Elf to be slain. Loki ransacked the vault, taking many valuable jewels, including the Sethiels. They then quickly escaped.
The Gods, dismayed by the destruction knew now that the light of the Tree survived only in the Sethiels and they asked Maëdur to give them up so that they could restore the Tree. Maëdur emphatically stated that he would not give up his Sethiels of his own free will; if the Gods forced him, he said, they would be no better than Loki. A messenger from Namos then arrived to deliver the news of his father’s death and the loss of the jewels.
The Gods and Eldar now saw the extent of Loki's treachery. Maëdur, now king of the elves on the death of his father, delivered the most impassioned speech ever given, which he unwittingly filled with Loki's taint. He railed against the Great Enemy, but because of Loki's influence and his anger he also blamed the Gods for Loki's deeds. He persuaded most of his people to go to the land of men with him and fight for the Sethiels. Maëdur then swore that he would get the Sethiels even if he had to fight the Gods. The Oath of Maëdur was also taken by his seven sons who invoked the creator of Gods as a witness. This oath was the cause for great tragedy for Maëdur's family.
Seeking a way to get to Middle-earth, Maëdur went to the shores of Aman, where the seafaring aquatic elves lived, and demanded the use of their ships, for the high-elves had not yet learned the craft. The aquatic elves refused and in return Maëdur and his armed and impassioned high-elves threatened to attack the lightly-armed aquatic elves, destroy their settlements and seize the ships. They refused still, and Maëdur's people attacked the aquatic elves. Some of Maëdurs host turned around then, unable to participate in murder. They were accepted back by the Gods, and Fanor, half-brother to Maëdur ruled as King of the High-Elves in the land of the Gods. Meanwhile, the rebel high-elves sailed away in some of the aquatic elves ships.
There were not enough ships to carry all across the sea, so Maëdur and his sons led the first group. They arrived at Loskar where Loki and Gormôt had passed not long before. They decided to burn the ships and leave the followers of Eldon behind. The earth, being flat in those days, allowed the remaining elves to see the flames, and they perceived that if they were to go to the land of men, they had no choice but to cross the Belcaraxë. This they did under the leadership of Eldon, and suffered great losses along the way, which greatly added to the opposition they had for Maëdur and his sons.
Learning of the high-elves arrival, Loki summoned his armies from his fortress and attacked Maëdur's encampment. This battle was called the Battle under the Stars, for the Sun and Moon had not yet been made. The high-elves managed to win the battle and disperse Loki's armies. Maëdur, still in a great rage, pressed on towards Loki’s fortress. He even came within sight of it, but was ambushed by a force of Dragons, and with few elves about him. He fought mightily, hewing even after receiving several wounds from Gralog, captain of the Dragons. His sons came upon the Balrogs with strong forces and were able to drive them off. However, as Maëdur was being escorted off the battlefield, he knew his wounds were mortal. He cursed Loki thrice, but with the eyes of death, he knew that his elves, unaided, would never throw down the dark towers. At the moment of his death, the passing of his fiery spirit reduced his body to ashes.