So guys this is a one shot I hope you do enjoy.
WARNING-SUICIDE
He grabbed his blade and checked the time. 5:00 a.m. The other marauders would be waking soon he needed to hurry. He grabbed his shoes and slid them on and clambered out of the portrait hole. All that could be heard through the halls were his quiet footsteps as he walked through the halls for the last time. He breathed in the air slowly. He grazed his fingertips across the walls. He gazed at the portraits. He finally got to the steps up to the astronomy tower. He climbed pausing every so often to catch his breath. When he made it to the top he hopped up onto the ledge so that his legs were dangling over the edge. He looked at the quidditch pitch. Then he brought the blade to his arm and carved "Mischief Managed" in his loopy handwriting. Then he turned around, crossing his arms across his chest, with that he tilted back and fell closing his eyes and breathing in the air realizing it would be his last breathe. That his last thought, the thought of his last breathe made a small smile appear on his face. Then a loud crack was heard. He had landed.
The quidditch team was heading out for practice. 2 of the members saw something on the ground at the base of the astronomy tower so they ran ahead to investigate. When they got there one burst into tears and fell forward, the other gasping and falling forward gripping his hands to his face hoping it wasn't real. Alas it was. The body of Remus John Lupin lay there with the words "Mischief Managed" carved into his arm, lying in a pool of his own blood, a smile on his face, and his eyes closed. Sirius Black gripping the arm of the body sobbing. James Potter curled in the fetal position on the ground no emotions showed on his face except for the wide eyes of shock. The rest of the quidditch team ran over and gasped.
The remaining marauders went up to the astronomy tower that night. They all carved the words "Mischief Managed" into their arms, then climbed up onto the ledge their backs facing out towards the quidditch pitch. Sirius drew his wand pointing it at the map and muttering "I solemnly swear I am up to no good." Then he grabbed one of James's arms and one of Peter's. Then he tipped back bringing the other 2 boys with him. When the last of the 3 finally landed the footprints of all the people at Hogwarts began disappearing, then the drawing of the school began to fade, and then in the loopy handwriting of Remus Lupin a few final words appeared.
"Mischief Managed for Messrs. Moony, Wormtail, Padfoot, & Prongs"