Nora! is Culprit?

"We have searched everywhere. We didn't see her." a student came running breathlessly and informed the teachers. Many others returned one after one but they all shook their heads. The teachers looked uneasy by now. 

"Should we inform the local authorities?" asked the teacher with an ashen face. She was on the verge of crying. 

"They would not do anything until twenty four hours. It had only been two hours by now. Let's keep looking. Perhaps, she had gone to local market to buy souvenirs for her friends." the teacher knew that it was a false hope. But she still nodded. A teacher with a few students had already gone to the market to look for Penny there. 

When they saw Nora returning, they asked in an urgent tone. "Nora, did you find any trace?" 

"Do you not think that her bed was awfully clean and tidy as if it was not used last night?" Before Nora could reply, Kane cut them with a frown.