Status: This story has been unfinished for years

Story

This is a fantasy story about the life of a family who gets caught at a mysterious mansion built into a mountain by some magical powers.
I have come to a block have not known what to write next for the past 7 years.

I am placing is here for constructive feedback and possibly a direction to take it in.
Please do not suggest where I should take the story unless you have read it through.

The story is intentional written in the first person from the point of view of two of the people in the story.
The story revolves boy, his younger sister, a mysterious man, and a girl that has lived in this mysterious place her whole life.

Note: I did a spell/grammar check before submitting. If you find anything wrong grammatically or otherwise please let me know.

The main character, the boy, his name is Ari. The Girl is La' Dana.
There is Ari's little sister Amanda. And there is Mommy and Daddy.
A mysterious man in black and a wide brimmed hat and the porter (no that is not his name).

I should note that he also is wearing a mask that covers all but his eyes. I don't think I ever wrote that into the story.