Anna's family

Possession

It also sounded very threatening

Elsa turned around to see a strange man sitting on top of the tree banches, staring down at her while gleefuly smiling

"Aaaah are you the one so called fifth spirit?"

Elsa couldn't tell because of the dark

"So what if I am?"

She lifts her finger up as it brightens up

But once she turns the light on him, he dissapears from sight

She hears it again but this time frm the opposite side

She blasts towards him only for him to be already gone

"Good. Let me see more"

It was echoeing from multiple directions. It's like he wasn't alone out there

She blasts out a massive shockwave all around only to hear him laughing at her

"Why not ome out here, then I'll do that!"

She turns around to see him behind her, all in robes, his face darkened

His eyes deep red

All muscular, with long auburn hair...

She remembers that description very well from Kristoff

Clenches her fists "So.. YOU are Tarzan"

The man in the robes smirks at her

She feels the same way as back then, when Hans appeared. Looking all humble and kind while in reality plotting to kill her and destroy her family

"I knew it. So it was all a lie ...you lied to my sister, you lied to everyone! What have you done to the spirits?!"

She then charges at him with her hand coated with sharp ice

He however appears behind her "You aren't focused"

By the time she turns she finds his fist in contact with her stomach

He kicks her few feets away into the tree

"Now now do not make any mistake... While this body wasn't mine, I'm not Tarzan"

Elsa coughes heavily, that punch was no joke

She sees a little blood on her hand

She looks up at the figure towring over her

"My name is Bron, the former leader of the rock trolls"

Elsa looks shocked, the rock troll? Trolls weren't seen in the forest for a long itme

"You seem surprised? After all I was gone for many years... cast into the dark realm by that cursed mother of spirits"

Elsa - No...What have you done to Ahtohallan?

"I have many friends of my own who made sure to get me out..."

He grabs Elsa by her throat

"I have to thank your brother too for unleashing me and borrowing his body"

Elsa tries to blast at him but he pinned her down

"I originally had my sights set on you, but I after seeing him I moved down the list"

He drops her down to the ground

He flexes his muscles "Such raw emotion, such strength, such an agility... He's a worthy candidate"

Elsa blasted a concentrated hail of storm in his direction

He moved out of the way of her blast, side stepping someone and stillmaintained an unsettling calm composure

"Now that's impressive..."

He then claps his hands together causing a shockwave

"...But not enough"

She was sent flying but mid air she created an icey wings, with her then charging towards him

"Ouh you'll find I have more qualities you won't like"

Caught off guard he was caught and taken upward

"You didn't answer my question..."

"Ah yes...that wrethed collection of memories is now consumed by the energies of the dark realm"

He headbutts her as she loses balance

She however held him tightly as they both land and collide with the big rock on the ground

Elsa caughs up blood "What do you mean 'Consumed'?"

"We opened the path to the dark world and left it open in the very center of Ahtohallan. It' now on it's way to be completely corrupted"

Elsa's eyes widened in disbelief "No..."

"You've failed your mother and your brother, fifth spirit"

Those words resonated within her mind.

"You don't seem to care about him do you? Those attacks you unleash on me, without any hesitation..."

Elsa slowly rises up

"Good you can still go"

She smashes her fists on the ground creating a freezing blast, Bron jumps backward few feet away

He does the same thing as her and then lifting up the large piece of rock out of the ground before throwing it at Elsa

She makes a giant sharp blade that manages to cut it in half

"We'll have to part here I'm afraid"

He's then running on all fours towards the opposite direction

" Oh no you won't!"

She goes after him, making ramps and slides of solid ice, that she can travel on at great speeds

"Running away now? What's wrong, afraid I'd win?"

Why don't you follow me and see?"

His face twisting into a creepy smile as he keeps up his pace

Worry not, this Elsa vs Tarzan fight isn't over yet. They didn't go full out yet, with all of the tricks up their sleeves. They'll have a round 2 later.

Also yeah I asked one on reddit "what would happen if Ahtohallan is consumed by the darkness?", the results may be corruption of the memories and the spirits connected to it. It's really interesting, wonder if that's gonna happen in Kingdom Hearts adaptation of Frozen 2? Gess we'll wait and see.