The End of Lies by Tara Brown

Summer in the English countryside is exactly the break Evie thinks she needs to reconnect with her kids.
No bots.
No deaths.
No helicopter flights.
Just a simple vacation and peaceful scenery.
What more could a cold-blooded assassin ask for?
Unfortunately, it doesn’t last and the team requires a certain arms dealer’s help.
Leaving the kids in her mother’s capable hands, she goes to him, eager to see him.
What she finds isn’t exactly what she had hoped for.
It never is with him.
Desperate for the lies and treachery to stop, she ends the relationship she isn’t even having and goes back home.
Only S isn’t done with her.
He never will be.
But none of that matters, as the end of the mission nears and puts the real world on hold while the spy world falls apart.
As everything heats up, Evie realizes the end of this war means the end of love for her.
And sometimes a girl’s gotta do, what a girl’s gotta do.
Even if it means sacrificing herself to protect the ones she loves.