The lights inside the laboratory are all turned off. At the center of the room is a glass cage with children in it. No one outside the cage can hear any sounds coming from inside the glass cage but every scientist could see the distorted expressions of the children inside the room. Few of them had longed fainted, some had started going crazy banging their heads on the cold floor or wall near them. Some children are shrieking with all they got even not caring whether they will hurt their throat or lose their voice. It was like hell on earth for those children inside the glass cage.