Koa's ruined axe
The axe he carried into the Twisted Grove and set once into a burning death-tree, which was once more than it could take
Koa carried an axe into the Twisted Grove and left most of it there. Which axe he took was never written down.
He lit the ring of oil, walked into what became an inferno on the strength of endure elements, read the trunk for where it would open, and started chopping and splitting and feeding fire into the wood he had exposed. The first time the head went into that trunk was the last time it went into anything. Mikhail, a floor below with a crystal in the roots, felt the tremor come down through them.
It came out of the Grove with him and went to Hinta, who spent days on it and then stopped. She threw the axe down at his feet and a gouged whetstone after it, and told him it was beyond saving and she was done trying.
Koa kept it. He patted it the way he pats a horse, and told it: “We all leave our primes eventually, but you’ve done more than most.”