Lion by Amber R. Duell

Langwidere has an obsessive habit—collecting heads. She wears a new one each day, changing them out like she does her ivory dresses. But Landwidere doesn’t have the one thing she truly wants: complete power over the territories in Oz. When Lion—the once cowardly fae—shows up at her doorstep, he offers her an opportunity to achieve her desires. Will he use the courage the Wizard gave him to help her succeed, or will he betray her in the process?

This is a short story prequel to the Faeries of Oz trilogy. (