Werewolf Origin

They were jotting down notes in their journals when the two big outside cellar doors suddenly flew open.  Bela raged into the cellar screaming furiously at Paul for assaulting his mother and taking the wolf bane.  He pulled his knife from his waistband.  When Bela opened the cellar doors, the light from the full moon flooded the room.  When the moonlight touched the wolf, it howled; a bloodcurdling sound.  Before their eyes it grew bigger, the eyes of the beast glowed red, the snapping of the jaws was like that of a bear trap.  It foamed at the mouth.  The creature was horrifying.  It looked like it wanted to rip all of them apart.