Thorn, a character in A Winter’s Promise by Christelle Dabos (Translated by Hildegarde Serle), has a prosthetic leg.
From the publisher:
Plain-spoken, headstrong Ophelia cares little about appearances. Her ability to read the past of objects is unmatched in all of Anima and, what’s more, she possesses the ability to travel through mirrors, a skill passed down to her from previous generations. Her idyllic life is disrupted, however, when she is promised in marriage to Thorn, a taciturn and influential member of a distant clan.
US publisher: Europa Editions (2018)
Language: French, English