Through Fire And Ruin by Jennifer Becker

Some lies are ruin…

For centuries, humans have been at the mercy of the fae. With the border between Earth and Liraen spelled shut, humans have no desire to entangle themselves with the fae world again. But what if they are humanity’s only hope?
LORA has been warned of the fae her entire life. Yet when a deadly virus sweeps Earth, Lora risks everything to find a cure. Spinning the perfect lie, she makes a deal with Eyden, a mysterious fae trader. As Lora struggles to keep the promises she has made to both her family and Eyden, she is forced to dig deeper into the twisted world of Liraen — her web of lies unravelling.
AMIRA has spent years trapped by her brother in her childhood palace. Her engagement to the soon-to-be High King of Liraen is her only hope for the freedom she has been longing for. As the future Queen, she seeks to finally leave her painful past behind. But she soon discovers that the palace holds dark secrets — bringing up memories Amira had long since tried to erase.
As power games are woven, promises are broken, and desperate lies are revealed, Lora and Amira both find themselves at crossroads. Will they risk it all and face ruin?