Start Again // Hogwarts fan fic

Luna, Aurora, Mason, Manuel and Andrea all met in their first year at Hogwarts and became close ever since then. They are known as The Core Five. They all come from a very bad past with their Personal lives. As their past seems to follow them into their year 6th at Hogwarts. The four of them have some dark secrets they don't know about each other. Half way through the year, they somewhat encounter some trouble over a bet that happened a night before year 5 had gotten out. Is this going to ruin their friendship? Or bring them closer together? Or even threaten their friendship more. they have so much to learn in such little time before they leave Hogwarts for the next summer break. And with their dark secrets following them around along with their past, will they ever be the same after this year? Or will this change them for the worse?