Mistborn: Secret History

by Brandon Sanderson

After being killed by the Lord Ruler, Kelsier meets Preservation as he is about to pass on to the spiritual realm. Kelsier refuses to do so and races to the Well of Ascension at the heart of the Lord Ruler's palace, touching its power and thus anchoring himself to the world. Whilst trapped at the Well, he discovers another entity trapped there: Ruin, the counterpart to Preservation, who intends to destroy the world.

When Vin accidentally frees Ruin when she gives up the power at the Well, Kelsier is also released. With the world now under direct threat from Ruin, a dying Preservation tasks Kelsier to find help. Following Preservation's guidance, Kelsier meets two people from different worlds, Khriss and Nazh, who point him to a covert group known as the Ire (Eyree) as his only chance for aid.

Despite Ruin's dissuasion, Kelsier travels to the Ire's fortress. He discovers that they are planning to steal Preservation's powers once he dies by using an strange artifact. Kelsier dupes the group by posing as Ruin and steals the artifact for himself. When he returns to his world, Preservation tells him that he cannot pass on his powers to Vin because she has been spiked by Ruin. When Preservation finally dies, Kelsier takes up the power using the stolen artifact. Trying and failing to contact Vin because of Ruin's interference and his inexperience with Preservation's powers, Kelsier decides to instead travels to Urteau and succeeds in freeing Spook from Ruin's influence.

Under Kelsier's command, Spook sends a message to Vin about her spike and Ruin's influence on her. However, Ruin intercepts and kills the messenger using Marsh, Kelsier's brother, who is now under Ruin's control. They then witness Vin's battle and subsequent defeat at the hands of Marsh and the other Steel Inquisitors. With Ruin's rage loosening his control, Marsh manages to use the intercepted message as Kelsier secretly intended and removes Vin's earring spike. Kelsier gives up Preservation's power to Vin, who uses it to kill the other Steel Inquisitors - but she ascends before she can finish Marsh.

Kelsier realizes that Ruin's power is incomplete until he finds the Lord Ruler's hidden cache of atium. He watches the battle at the Pits of Hathsin and Elend Venture's death at Marsh's hands. With her husband's death, Vin sacrifices herself to kill Ruin. Kelsier's long-time friend, Sazed takes up the powers of both Preservation and Ruin, ascending as Harmony. Kelsier tearfully reunites with Vin and watches as she too chooses to pass on to the Afterlife with Elend. After Harmony remakes the world, Kelsier speaks to Spook and recruits his help in getting him a new "string" to the physical realm.