A nasty expirience

This story about a grandmother. She was 82 years old.
Ones day She had nasty expirience.

It was last Sunday about 4 in the afternoon.
She was at home.
Suddenly she heard someone knock at the door.
She opened the door and saw two girls 10 or 11 years old.
They said that them parents going to buy a house near her and they want to see her house what is it like.

There was nice girls. And grandmother invited them in.
They looked round the living room.
Suddenly one girl asked a glass of water.
Grandmother took her into the kitchen.
At the same time she heard, that other girl run upstairs.
Grandmother shouted her: What are you going up there? Girl said that want to use your toilet.
Grandmother did`t worry more and gave the girl in the kitchen a glass of water.
Then second girl run downstairs and they left.

Grandmother didn`t notice anything strange.
But when she went to the bed, she didn`t find her jewellery.
And she remembered about girls.
She called the police, but police didn`t catch them.