After a brief silence, Frank caught the sound of footsteps. "You're back? Why so fast?"

He turned around with a smile. But a second later, his face turned cold.

"Hi," Sophia approached with awkward movements. "Where are the others?"

Frank's jaw shifted slightly, making an unfriendly impression. He was starting to get sick of that question, even though he had only heard it twice from Sophia.

"What are you doing here?" he asked, sounded annoyed.

"I want to help." Sophia shrugged.

Frank snorted. ...