(Y/n) (L/n) was the Horrific Cheshire Cat, half-mad and dangerous. Kidnapped, experimented on and trained for 11 years, she has become one of H.Y.D.R.A's greatest secret weapon. But after a daring escape, she finds herself free of her clutches and with with her own hand controlling her actions. She though that she left the world of superpowers and secret organizations behind, but is proven disappointingly wrong when not even six months later, she is once more dragged into the fray by the ex director of S.H.I.E.L.D. With the threat of Ultron running rampant around the world, and the Avengers left in tatters in a farmhouse when she finds them, (Y/n) is left to give it her all, and to make use of the 11 years of training she's been force fed. But it may be harder than it seems, especially when she feels something that she's never felt before when she's around the American Captain that she can't quite name. And it all grows worse when she's enveloped by darkness, and not even her horrors can drag her out. The Horrific Cheshire Cat may have just lost her head for real this time. //going through editing, then I'll post chapter 5, I promise!