Today Kaeya was walking around with Klee having to keep an eye on her as Albedo was busy with work involving Lisa and Jean.

Klee. : when do you think Albedo will be done?"

Kaeya : yeah he should be done by n-

Klee : who's that man?"

Kaeya : hmm?*

Kaeya looked where  Klee was pointing and saw in the woods watching them was a man just starring at them and what made it uneasy was the fact all Kaeya could see was his eyes no face like a void and black goop substance dripping down.

Kaeya then took Klee's hand and started walking away with her as the bad feeling grew. And as he glanced back saw the man was gone

Kaeya : let's get going Kle-

Klee : KAEYA!"

Kaeya quickly turned back and used his cryo vision to knock the man back who was about to attack them.

Kaeya : KLEE RUN!"

and as Klee listened and ran off to get Albedo Kaeya stood back fighting the man as best as he could but this guy was fast and strong and out to kill him.

Later as Klee came back with Albedo Lisa and Jean they didn't see the man but saw kaeya on the ground grabbing at his face screaming in pain as black goop covered it. Then suddenly stop. Going limp.

But then suddenly he started sitting up his body twisting and distorting. And Jean quickly got Klee behind her as Albedo and Lisa got ready to fight

Then Kaeya quickly attacked them and both started fighting Kaeya trying to restrain him and stop him but he was faster and stronger than them and clawed at albedo's arm leaving gashes and knocking down Lisa.

And as he went for jean and Klee suddenly Klee yelled hugging him nearly crying.

Klee  : BIG BROTHER STOP!"

suddenly Kaeya froze looking down at her seeming hesitant to do anything.

Klee : please stop..... Big brother kaeya  wouldn't hurt his friends....."

Kaeya then tilted his head seemed to be thinking and as he did Albedo and Lisa were able to restrain him and decided to take him to dragonspine to Albedo office away from everyone.

Later once there Kaeya was tied up tightly as Klee told them what had happened.

Lisa : so a man with no face attacked you both?"

Klee : yeah....will he be okay?"

Albedo : ....of course he will once we figure out what exactly happened to him"

Jean : is your arm okay?"

Albedo's arm was wrapped up. the gashes were leaking black goo but he covered it.

Albedo : for now I'm fine I Don't know if whatever happened to him spreads through wounds but just keep an eye on me"

Jean : what do we do with Kaeya in the meantime?"

Albedo : I'll stay here with him and try and figure what happened. You should get back to Mondstadt that other man could still be around every knight needs to be on guard

Everyone looked at Kaeya who wasn't moving and had his head down seeming in a calmer state than before.

Albedo : he seems calmer could be a number of reasons maybe he still has some form of self awareness he stopped attacking when he saw Klee. So this says something but I need to do more research"

Klee : we should tell Master Diluc won't he be worried?"

Albedo : go on I'll be here"

They soon left Albedo with Kaeya.

Later as he was alone with Kaeya he looked at him. And notice he seemed a little shaky but not from the cold maybe from fear or something else.

And could strange sounds coming from Kaeya like gurgling or crying. The crying was faint but even with his eyes only being visible they were filled with pain.

Albedo : whatever happened to you Kaeya I will help you"

He then looked at his arm and saw the black goo slowly spreading he knew what might happen to him soon. But as he was thinking suddenly he heard something outside the cave and decided to go check it out.

As he went out he saw the man running off and went after him chasing after him through dragonspine.

But as he did he got to a cliff and didn't see the man anymore but as he turned around he suddenly was pushed off the cliff hitting the ground and snapping his neck on a jagged rock.