The Moon's Chosen: The Howling Prophecy

"Run!" my father exclaimed. Once more, please! I have spent nearly my entire life running. I got really good at it eventually, and it was helpful. Being a werewolf who was unable to shift at the age of twenty made me feel different, and naturally, the rest of my family and the pack shunned me. This seemed to be Luna's fate. With her 'inabilities' all around her, Luna was a lone wolf without her usual disposition. At the darkest hour of the night, with the moon in full view, a strange figure hovered over the house and crawled into her room, casting its shadow over her as she slept. It was without form and void. The only distinctive feature was the icy eyes which looked like they contained icebergs. The presence was so strong as well, the extreme drop in temperature made her wake with a start. Her worst fear had come to pass; Sleep paralysis. The eyes glowed even more as it caressed her lips with its fingers while whispering, "The time is now". With a creepy laugh, it vanished. The voice is deafening, ringing in my ears, voices in my ears for many years but it's worse now. My vision blurred and I could see red eyes flashing through and through. Like a vortex, the voice plunged me into a darkness that was thicker than normal. I shut my eyes in fear of the unknown as I spiralled deeper into the never-ending darkness. I was gone for as long as I was drawn into the darkness. A flash of light sparked in her head so painful it forcefully drew her out of the darkness and caused her to open her eyes. The white light which reflected what seemed like a battle between ice and fire glowered out of them. She looked ethereal yet evil, an angel but had the look of a devil as she made various moves of getting up slowly. She stood by the window as a gush of chilling wind and cold hit the room she was in. She heard a whimper and standing behind her was the biggest, fiercest creature that immediately pounced on her. What happened to Luna? A shift had occurred in the realm. Why her sudden disappearance? 'The time is now!' Would she ever be free from the never-ending clutches surrounding her? Mate. Where was he in this whole scenario?

Most importantly, who is Luna?