You were the daughter of two archeologists, when you turned 19, your parents took you to visit the pyramids of Egypt, they wanted you to be a popular archeologist too, so they wanted you to get interested in this.
You arrived late at night, so your parents settled a camping tent to spend the night in.
The next morning, you got the opportunity to get inside of one of the pyramids, with your parents, they basically forced you inside.
But something went terribly wrong, you fell into a big hole, sadly, there was nothing the guides could do... You lost consciousness as you touched the floor.
Later... You woke up, surrounded by walls, next to you, was a man sitting on the floor, working on a knife, when you woke up, he noticed.
"ḥr.k wḏ? " you had no idea about what he said.
You were confused, and in pain, but you were already covered in bandages.
"Who are you?! What's this place? "
He realized you couldn't speak his same language...
"I'm Asim, protector of my people, you are an intruder and you'll be treated as one, you're going to jail till we decide what to do with you. "
He basically forced you to walk through a door... You were amazed by what you saw... An Egyptian civilization, underground... They never disappeared, they just moved on... They were so advanced, even had their own artificial sun, lakes and houses, but the style was still of a traditional Egyptian city... You were... Amazed by this revelation... But you were quickly shoved into a cell.
Night fell, and this cell was really... Old, so you could escape easily, you did it, and somehow managed to go back to the surface, you were just so shocked, you had to reveal what you found out... But... Those people... Were hiding underground... From the modern humans... Was it a good idea to take away their peace?... You... Couldn't do it.
Your parents weren't around anymore, they thought you died. So you spent the night in an abandoned tent... The next day, you started to explore... Just to find Asim, walking around the place, acting like a normal tourist, but of course he was angry, and looking for you.