The Five Companions were a group of adventurers who embarked on a quest to rediscover the lost Amulet of Kings during the Interregnum. The Companions were led by Emperor Varen Aquilarios of the Empire of Cyrodiil, who desired to use the Amulet of Kings to rekindle the Dragonfires in a ritual aimed at persuading Akatosh to alter his heritage and make him a Dragonborn, and thus a legitimately-ordained ruler of the Empire. The other four Companions consisted of some of the greatest fighters and minds of that time. Lyris Titanborn, a Nord warrior said to have the blood of giants, served Varen as his personal bodyguard. Sai Sahan, the Redguard Captain of Varen's Dragonguard, was charged with protecting the group. Abnur Tharn, Chancellor of the Elder Council and Varen's advisor, accompanied Varen in his capacity as Imperial Battlemage. Lastly, there was Mannimarco, a legendary necromancer who held considerable influence with Varen and claimed to know how to conduct the Dragonfire ritual.
For years after Varen's conquest of the Empire, the Five Companions traveled the land in search of the elusive artifact. In 2E 579, having successfully located the amulet and returned to the Imperial City, Varen and the Companions initiated the ritual with the Amulet. It was then that Mannimarco revealed his treachery and corrupted the ritual to break the ancient covenant between Akatosh and mortals, triggering a catastrophe which the Elder Scrolls named the Soulburst. A powerful explosion of magical energy swept across Nirn, setting the plane adrift in the Mundus and rendering it vulnerable to Molag Bal's plans to merge Nirn and Coldharbour in the Planemeld.
Varen vanished in the chaos of the Soulburst, allegedly destroyed in the blast. In the immediate aftermath, Sai Sahan managed to secure the Amulet of Kings and fled from the Imperial City to hide it, taking it to the ruins of the city of Sancre Tor, the burial site of the Reman emperors. Mannimarco made Lyris Titanborn his captive, and Abnur Tharn, seeking to preserve his status, pledged his loyalty to Mannimarco and had his daughter, Clivia Tharn, declared Empress Regent in Varen's absence. The Five Companions and Varen's dream of reviving the Reman Empire came to an end, and the world was set on a course for the Alliance War.
- Chronicles of the Five Companions — The personal recollections of the Five Companions
- Eulogy for Emperor Varen by Lord Abnur Tharn, Chancellor of the Elder Council — A lament for a dead emperor
- Meet the Character - Chevalier Renald by Abnur Tharn — Correspondence collected from the ruins of the Imperial City
- Meet the Character - Sai Sahan by Abnur Tharn — An entry from Abnur Tharn's journal