Who was I?

Who was I? is the only reference we have of them, the only sound made by them ever recorded, even though we are able to see and hear them, we only know ancient stories about them. It seems they were humans ████ years ago and have long since been dead, the reason of their mere existance is unknown, arcane inscriptions in stone pillars located in ██████ tell a tale about dead humans whose souls have left their bodies but still somehow exist in our realm, they wander around acting similarly to some kinds of ghosts but do not cause any harm, sometimes their voice can be heard, they start asking cuestions until you answer, some frequent ones are: Who am I? Why? What is my name? although sometimes they ask one more thing: Will you come with me?

This has only happened once and two hours after the incident the staff member who heard it had a strange death, it seems like he had a ██████, but he was in a healthy and stable state.

We have tried to contain them, at least keep them from wandering off the facility, they only seem interested in facts about them. 3624 minutes have passed since their last appearance, until another one of them is spotted, we are researching with the little information we have about them, this is all we know: they can somehow understand us, strangely they cannot be filmed or be seen by survailance cameras, they have a nice and serene voice unless ignored, which causes them to speak in a horrible distorted voice, if their cuestions remain unanswered, their voice will become a horrible screeching noise which can cause a ██████.

It seems i was wrong, it is not harmless, it… keeps asking… I don´t know… Who I am anymore…