Our Infinite Fates Ending Explained: The Climax, Character Fates, and Loose Threads
⚠️ Spoiler Warning: This guide contains detailed spoilers for the entire novel. Proceed only if you've finished reading or are comfortable knowing the plot.
The Ending in Brief {#the-ending-in-brief}
The novel's climax takes place in the Underrealm, where the protagonist (known as Evelyn in her earliest remembered life) and Arden confront the Mother, the devil who bound them to their cycle of reincarnation. After the Mother is wounded but not destroyed, she offers a new bargain: she will drain the love between Evelyn and Arden, killing them, but in their next life they will be free of the tether, with no memories of each other. Arden initially refuses, but Evelyn argues they cannot choose love over the world—they cannot become villains by reaping innocent souls to stay together. They accept the deal.
As the Mother siphons their love, the overwhelming force of it kills her instead. The Underrealm crumbles, and Evelyn and Arden begin to die, with Evelyn losing her memories of Arden as the love drains away. The final chapter, set in Scotland in 2054, shows a man named León Cazares, a fashion designer, working at a café in Edinburgh. He notices a red-haired man with tortoiseshell glasses reading a book titled Ten Hundred Years of You and feels an overwhelming sense that his lifelong search has ended. He approaches the stranger and asks if they have met before.
The Climax: The Underrealm Confrontation {#the-climax-the-underrealm-confrontation}
The climax is not a physical battle but a moral and emotional standoff. Evelyn and Arden enter the Underrealm willingly, hoping to destroy the Mother. Evelyn stabs the Mother with a bone shard, but the devil survives, and her servants drag Arden onto a bed of hot coals, siphoning a black vapor from Arden's body to heal her.
The Mother then reveals her true desire: she has grown addicted to suffering, but she needs something more potent to survive—love. She proposes to drain the love between Evelyn and Arden, killing them, but granting them freedom from the tether in their next life. They would turn eighteen without incident, live to adulthood, and never be called to the Underrealm again. The cost: they would not remember each other, and their love would be gone forever.
Arden is initially horrified, refusing to consider a fate where they are