Wren Adeyemi has spent four years learning her uncle's trade in silver and iron for clients she was never allowed to ask about. When he dies mid-commission-a silver-forged blade for a wolf pack's beta-the pack comes to collect, and Wren has to finish the blade or lose the shop.
The pack's alpha, Callum Ross, takes the blade, the debt, and Wren, and delivers her to a pack forge run by Bram, an armorer who has hated humans since a silver round killed his brother thirty years ago. Wren's new life is fourteen-hour days, a quota that's designed to break her, and a hierarchy that treats her as a tool-all under a man who resents her existence and knows exactly how to make her finish his work.
Over nine months she learns what the forge is really for: challenge blades for a fight Callum intends to enter unarmed. When he's wounded on the field, Wren and Bram have one night to forge a replacement-together. In the last chapter, Wren is offered the armorer's bench, and Callum asks her to make him something for peacetime. She offers a ring instead.