Frozen III: Return of a Nightmare

Disclaimer- I do not own Either characters from Frozen (1&2) or Rise of the Guardians. This story takes place after the events of Rise of the Guardians and includes the pairing of Jack Frost & Elsa. If you don't like it, don't read.
Also, If you haven't read the book 'Frozen II: The Forest of Shadows', I would suggest that you do so the story and unfamiliar characters make sense.

Prologue
In the darkest crevice of the Earth, the infamous Guardian of fear Pitch Black, aka the Boogyman, was pacing back and forth, infuriated with his most recent defeat. He was finally able to control his own fear and once again tame his nightmare creatures, nevertheless, he was consumed with humiliation and hatred for the so called Guardians of Childhood, especially the "mutual party" known as Jack Frost. "How did this all go wrong?" Pitch said one of his nightmare horses. "I had spent centuries of my immortal life on this plan, making sure every single detail was perfect, and then the weak Big Four, along with a couple children, and a pathetic excuse of a Guardian, Jack Frost", speaking his name as if it were poison on his tounge, "just come in and ruin it all!" With the heat of his anger, he creates a glass vase out of black sand and throws it against the cavern wall, making a loud crash while the surrounding nightmares watch him in frieght while the sound echos throughout the tunnel. Taking a few deep breaths, Pitch regains his composure and begins pacing once more, trying to think of a way to enact his revenge on the other immortals. However, on his 5th round, something catches his eye. It was one of his nightmare wolves, but this wolf was standing underneath the smallest beam of light protruding through the ceiling making him look white as snow with his sand eyes still a strong yellow. Suddenly, Pitch discovered an idea that caused his lips to curl into a devilish grin. "Of course!" He exclaimed. "Why haven't I thought about this before, although it has been almost 200 years, and she has avoided my control on more than one occasion, but now she has no one left. No family, no friends, at least not human, she's all alone once again.", The thought of his newfound plan earning a maniacal laugh from his mouth. This time, she will have no choice but to join me." Turning his head up to the top of the cavern, Pitch said with an evil smile, as if somebody could hear him, "Don't think that this is the end, oh Guardians. This is only the beginning. I will return, and when I do, you will all beg for death." And with one swift movement, Pitch swings his shadow axe towards the ceiling, shattering the top an filling the tunnel with dust and moonlight. And when the dust cleared, Pitch had vanished along with his minions for some buisness in the Enchanted Forest.

Author's Note;
Hey Guys, so I am new to the whole FanFiction writing, nevertheless, I love these stories. I am not sure how often I will be writing, but I will make sure to write new chapters whenever I have the time. Also let me know what you think in the comments. Thank you for reading and have a Merry Christmas!