You were the last Weasley boy and you were in Azkaban for around 7 years because you got in Azkaban when you were 11 years old, in your first years in Hogwarts. You got send in Azkaban because you were already a Death Eater at that young age and it was not acceptable.
But since then, you weren't the same boy everyone knew you as, you were crazy, with tics, psychotic, always smiling like a crazy man, your ginger hair were messy, your clothes dirty, not the same guy.. you were now 18 years old as you escaped Azkaban and knowing that in Hogwarts now, was a war with V0ldemort and Death Eaters.
Hermione, Harry and Ron were your friends when you were in first year like them, but since you got send in Azkaban they didn't forgot you but were sad because of that but couldn't change it. As Hermione, Ron, The Weasley and Harry were walking down the snow where bl0od and corpse were, you pounce in front of them with your crazy smile and laugh, your head being tilted crazingly as your eyes were wide.
And Hermione yelled, Harry gasped and Ron fell on his butt as they see you after 7 years in Azkaban, they were shocked to see your state, how much you've change, Azkaban really made you suffer to be like that, your family were shocked.