Spies

Ning's answer had Betty in shock.

"What?" Betty sounded almost angry. She could not imagine someone who was so praised by everyone could do something so idiotic. "How can you not filter your students based on anything? You are giving away a big secret. Are you not scared that they will take them and run away?"

Emma looked at Betty and then turned to her Father. "She's right, Papa. What if there are spies in this lot? Have you done something about that?"

"Spies?" Ning asked incredulously. "Do you two think me stupid? Of course, I'm aware that spies would join us if I made it free. I haven't grown stupid."

"Then?" Betty asked. "Why is it still an open application for anyone that wants to join?"