The Baby-Sitters and the Clown

Susy arrived punctually at nine o'clock in the house where he would take care of two children aged 3 and 5 years while her parents were going to a business dinner in a nearby town.
After giving the explanations for the couple left the house leaving Susy with children who had gone to bed, which prevented her to meet children or your room.
Some time later she heard children crying in the upstairs room where they were and was there to see what it was. Arriving there he found the two girls crying a lot.

"What?" - Asked Susy.
"I do not like clowns." - Said one of them reaching for a corner.

Susy was startled to see a clown doll the size of an adult. Seconds after recovering from the shock she was also scared, because that doll was very scary. He thought that parents would leave an ugly doll in the girls' room. She sat and sang songs for the two until they get back to sleep. After that he returned to the first floor of the house and was watching television.

Accompanied by a burst of crying girls warned again minutes later the babysitter. She ran into the bedroom where the girls were crying the same way before.

"- You have to go back to sleep. Are still afraid of the clown? "
"- He burst a balloon to scare us."

Susy looked down and saw the balloon popped, a prick in the left stomach upset. She looked at the clown once more and thought he was in another position the first time she saw him. She also became afraid and told the girls that would ask parents to come though. Down the stairs and grabbed the phone that was on the wall but was out of line. She went to her purse, grabbed the phone and typed the number of children left by parents, the woman answered.

"- Hi here is Susy, I'm calling because the girls are very afraid. I was wondering if I can remove or cover those giant clown doll there in their bedroom. "
"- What? We have no clown doll at home. "

Susy only then realized that no longer hear the cries of children and scampered down the stairs. Each rung on the ladder seemed miles, because she wanted to see the children and whether everything was OK.
The only thing that the child's mother heard a scream and the phone was falling. The couple returned home immediately and when they arrived they found the two dead children and nanny. All had their faces painted as a clown and a tethered helium balloon in the arm.