Once a Hero by Elizabeth Moon
Hardcover. Condition: Very Good, Dust Jacket: Good. 1997. 1st Edition. Stock Image.
Book #4 in the Serrano Legacy series. Esmay Suiza isn't a member of a great Navy family like the Serranos. All Esmay wants is a secure berth where she can be part of something greater than herself. But what she wants and what she may get are two different things. And one day, Esmay finds herself in the middle of a space battle, and the senior surviving officer in a mutiny against a traitorous captain. Suddenly, she has no choice--she must take command.