Zoyalinaling for the title game please!
I wrote a little bit about it in response to a different ask, so you get a snippet of setup.
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The sun soldiers began to die.
The first perished only a few years after bringing down the Fold; within the decade, more than half of them were gone. Corporalki examiners said the power had burned them up, from the inside out — the opposite of how power strengthened Grisha. Almost as if they were using merzost.
Many of them stopped summoning. Though it slowed the decay, within two decades they would all be gone.
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The sun soldiers may have been burning out, but by the time Zoya’s crew had found St. Feliks' heart, it was clear that Alina wasn't aging. Zoya saw the first signs of wear in Mal's face as they stood together near the thornwood; Nikolai had gotten crow's feet the year before. Alina, though — she'd never been beautiful the way Zoya was, but despite the years, despite her lack of power, her face was as young and radiant as it had been when she’d been a Saint. When she met Zoya’s gaze, the expression on Alina’s face said that she, too, knew the terrible truth. Alina gave a grim smile when Zoya failed to conceal her shock — if she was being honest with herself, though, Zoya had suspected as much for years.
When they brought the Darkling out of the tree, it had taken him only moments to recover, for the wild of his eyes to calm, for his heart rate (something Zoya now kept tabs on for the people around her out of habit, dragon's eye and are we not all things) to slow. For him to straighten and nod at her and Alina in turn before walking away. It wasn't a thank you and it wasn't a goodbye — more of an we all did what we had to and a farewell for now.
If Zoya was being honest with herself — well. That wasn’t something she was ready to be honest with herself about. Not yet.