The Hidden Signature

"Mr. Silva! You are finally here!" Paige saw Darren and ran over hurriedly.

"Paige, class is about to start. Why are you still here? You know the punishment for being late."

Paige pretended to be nervous and said, "Mr. Silva, there is something more serious than being late for class. I must tell you!

"Our school has a clear rule that students are not allowed to wear counterfeit clothes. We need to