Percy Jackson and the long lost sister

Percy goes on an adventure with Grover and Annabeth, to find Percy's long lost sister...Crystal. Not a normal person...

"I'm you long lost sister?" She asked.
"I'm scared Percy, someone could find out." She said.
"You need to see who is worthy of you telling them hidden secrets" he said.
Ever since she stepped in that horrifying place, everything has changed.
She left her parents.
She left everything behind.
So she wouldn't melt.
But when they met.
It became easier.
They were unbreakable.
She was happy.
She had a friend.
That friend was everything to her.
She wasn't sure to tell her.
But she did.
It took trust and courage.
You can never trust too many people.
Some people are meant to be a blessing,
But some are meant to be a lesson.