Years before the battle of Hogwarts, eight students roamed the hallways. All of them were from different houses, two were in each to be more exact.
The Slytherin Twins, Alec and Emily Lestrange. The twins were the children of the infamous Bellatrix Lestrange. Most of them thought they were going to turn out like their mother and it didn't help since they were put in Slytherin. (Although Alec was almost a Ravenclaw.)
The Ravenclaw duo had Alice Lovegood and Aurora Malfoy. Alice didn't have the best reputation do to her father and Aurora was feared because she was a Malfoy. Neither girl wanted their reputation.
The Gryffindors part of the group had John Parry and Lisa Poplar. They didn't have anything wrong with them according to everyone. They were the typical Griffindor stereo type. Loud, party type, energetic, brave, etc. Some consider it a miracle that people as calm as the Ravenclaw Duo can handle them.
Lastly was the two hufflepuffs, Richard Loftman and Xavier Hyde. The two completely took the stero type for their house and turned it around. Some wonder how they got even the house.
The eight students were great friends. They did everything together, even disappearing.
Several Years later, a group does a project on the event called "The Disappearance" only to try to find themselves trying to solve what happened to the eight students. As they untangle the mystery, they'll come across an old friend and a sibling who should've been long gone.