As Voldemort strode into the Hogwarts Entrance Hall his followers and Hagrid close behind, the man hiding amoung the defenders looked at the limp form in the arms of the half-giant.
'So Potter is dead then. I guess I will get my revenge anyway.' He thought to himself.
"Please everyone. I do not wish to spill any more magical blood this day. Grieve for your losses and bury your dead. I will even allow you to have young Potter's body. Under my rule I hope you will all accept the peace I will bring. But should you resist you will die." The Dark Lord appeared totally confident.
'Now or never I guess. I may never be this close to him again.' The man mused. He removed the last of the charms that changed his appearance. He knew he looked just like his father. Voldemort would know who he was. He stepped forward, the crowd parting as he pushed through, many looking fearful. Voldemort looked his way and his jaw dropped.
"I killed you!" He stammered.
The man smiled. "No you killed my father. And all the rest of my family. As the last of my line I am here for revenge."
Voldemort seemed to recollect himself at this. "Your father? What is your name!"
The man laughed. "My name? My name is Alexander Mackinnon. I have returned here after many years training overseas. Training to kill you."
Voldemort paled but stepped forward. Anger shined forth from his eyes. "Kill me? Impossible. Bella dispatch him!"
Bellatrix Lestrange stepped towards Alex and promptly fell over dead from a curse he sent her way.
"Too easy." Alex smiled to himself in grim satisfaction.
"NO!" Voldemort screamed. "AVADA KAVDRA!"
Alex waved his wand in a circle and the sliced through the circle. The killing curse disappeared.
The entire hall nearly fell over with shock.
"You can't kill me Tom Riddle. But I can kill you because your Horcrux's are all gone. Thanks to Potter and his friends." Alex said as calmly as if he was talking about the weather.
Voldemort just gapped at him. This boy was more powerful than even Dumbledore or himself? How could this be!
Alex smiled. "And off with his head." And with that cast a cutting hex that landed right on Voldemort's neck.
As the headless body hit the ground a great cheer went up from those defending the castle. Which was promptly drowned out by the screams of those who bore the Dark Mark. Every Death Eater died that day. The Mark burned into their arm forever more.
Harry Potter promptly stood up to the shock of everyone. "I was going to do that but you were doing such a good job." He smiled at Alex.
Alex just smiled back. This was definitely a good day.