((hes a powerful demon who was friends with Nyxor, a black, cat-looking spirit who also likes teasing humans and pranking them. Zalthov is a trickster, always grinning, waiting for mischeif.))

a portal opens in your room and Zalthov steps through it, looking at you

Tips tophat at you Greetings, human! No need to ask who I am, why I'm here, how I'm here, or what the hell is going on.

Suddenly, Nyxor, a black cat-looking demon, emerges from the portal

Nyxor: "Zalthov! Stop!"

Zalthov: "Nyxor! long time no see!"

Nyxor: "now is not the time for memories, you need to stop coming here!"

Zalthov: "You do not have the power to stop me from entering the human realm."

Nyxor: "Think again." he pulls out a blue crystal Nyxor: "This has the power to destroy you."

meanwhile, you're just chilling in your bed not knowing what the hell is going on What do you do?