The Sekhmet Bed (The She-King Book 1) by L. M. Ironside and Libbie Hawker
Free again, this has received some good reviews
The second daughter of the Pharaoh, Ahmose has always dreamed of a quiet life as a priestess, serving Egypt's gods, ministering to the people of the Two Lands. But when the Pharaoh dies without an heir, she is given instead as Great Royal Wife to the new king - a soldier of common birth.
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