Blade of Secrets by Tricia Levenseller

In The Secret Blade, the first book in Tricia Levenseller's exciting new YA fantasy duology, a teenage blacksmith with social anxiety is forced to go on the run to protect the world from the most powerful magical sword she's ever made.

Eighteen-year-old Ziva much prefers metal to people. She spends her days locked away in her forge, safe from society and the anxiety it causes her, using her magical gift to craft unique weapons imbued with power.

Then she receives a commission from a powerful warlord, and crafts a sword more powerful than any she’s ever made. A sword that feeds on secrets and steals them from those it cuts. A weapon that could topple kingdoms. Learning the warlord’s plans, Zira grabs her sister and goes on the run.

Four companions—a blacksmith, a mercenary, a scholar, and a flirt—set out on a quest to keep the sword safe until they can find a worthy wielder or a way to destroy it entirely, but the Warlord is a powerful enemy and her reach is long...