The Trust He Didn't Ask For (слэш)

After the Seven Potters' ambush, Harry is alone, injured, and lost. He is visited by a silvery figure. Harry doesn't understand what's happening or what is causing him to see such things. But he is told he must place his faith in Snape. Not only that, but he's told they need to learn to trust each other to destroy Voldemort; working together, they will be dragged through the chaos that Hogwarts currently is while simultaneously hunting down the Horcruxes. All while a tension of lust, desire, and wanting grows between them. A feeling that will rub their emotions raw until they finally have to face that the person standing in front of them is more than what they've known all these years.
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***The 40 chapter marker is my LBE of how many chapters I'm expecting this story to be on a recent outline I did. It may be subject to change.***