The Palm Of Tyrants by Eliza Gouverneur

Roman Palestine, the Year 85. Yona has been married to a Yavneh trader for nearly ten years, but now, because she is barren, the law requires him to divorce her. She is a rarity, an educated woman, but that does not make it any easier to accept her heartbreaking and perilous position. She has no dowry, and few marriageable skills. Neither her scholarship nor her talents at keeping her husband's accounts are considered a suitable occupation for a woman.

Then the unspeakable occurs. Joseph is found dead at the foot of his cart. Where was she that night? Rumors fly, then accusations.

Yona is desperate to clear her name. Unless she can rise from the shock of Joseph's murder to pursue the mystery, she will lose everything. She must find a way through the tangle of scholars and zealots, local inns and Roman villas, corrupt officials and the emperor's cult. But then, if she does discover Joseph's killer, will anyone listen?