An Italian mafia member gets hunted by Villanelle, a Russian assassin living in Paris. Which transforms into a forbidden romance and obsession (gxg)
Book 1: All Anastasia really believes about herself is that she was born to kill, that she has no place in this world. She is one of the worlds deadliest assassins, raised in the new and improved Red Room. Now 17, filled with trauma and rage. She is recruited by SHIELD after being captured, will she work with them...
Few had known Natasha had a Sister. Just like her, she was an agent of S.H.I.E.L.D. Unfortunately, Camille Romanoff has been deceased for the past five years, or so the story goes. But when Fury comes knocking at her door, recruiting for the Avengers Initiative, it appears she wasn't going to stay dead for very much...