Crossing the Line: A Harry Potter Story

"'Snape, move it' yelled James. Snape could see a monstrous shape sprinting down the tunnel. As it came closer, he saw its yellow eyes and terrifyingly sharp, snapping teeth. It howled; an eerie, feral moan, and his body went rigid with fear. This was far worse than anything he had expected." - The story of how James Potter saved the life of Severus Snape.