Tapestry of Night by Elm Vince

The stars promised Cassia great magic.
But this gift feels more like a curse…

Cassia has given up on her childhood dream of becoming a powerful mage. She’s chosen a simple life as a traveling astrologer, instead.
But it turns out Cassia was just a late bloomer, magically speaking, when she discovers she’s showing signs of being an empath. And when her newfound power gets an old friend captured and imprisoned, this sudden gift feels more like a curse.

To help save her, Cassia is drawn into a high-stakes plot to spy on the tyrannical, anti-magic government for a group of rebel mages.
Disguised as a noble, Cassia must help break the captured mages from their impenetrable prison. Unsurprisingly, a novice empath who can’t trust her own feelings isn’t the best at spying. Or romance, either, for that matter.

With her emotions running dangerously wild, it’s no wonder the ministers are growing suspicious. Especially a certain tall, dark and bronze-eyed minister who seems to be tracking her every move…

But if her uncontrollable powers – or her heart – give away who she truly is, and she fails to free the trapped mages, magic users everywhere will pay the price…