The Captive - Jennifer Marchman - Bog

Love or Duty: An Assassin's Choice
No longer a time-traveling assassin, Eva is desperate to start a new life with her husband - but her conscience has other plans.
When enemies attack the wealthiest plantation in Austin's Colony, she and her husband, Jim, must flee a vengeful mob to take shelter with his family. The only problem is Jim hasn't seen his Comanche village in three years. And he's not sure he'll be welcome, especially with an Anglo-looking wife.
For Eva, their escape heralds an end to their honeymoon and takes her farther from her former mission partner, Tophe - a sworn sword, just like she was. While she's had a change of heart, he has not, and if Tophe completes their mission, eighty men will be massacred.
In this second exciting installment of The Mender Trilogy, Eva must find a way to stop him - without starting a war with the time-traveling cult, Lux Libera.