Thornton's doubt was strong in his face, but his fighting spirit was aroused—the fighting spirit that soars above odds, fails to recognize the impossible, and is deaf to all save the clamor for battle.
He was standing a good distance from Mr. and Mrs. Weasley, eyeing them suspiciously, and when Mrs. Weasley hugged Harry in greeting, his worst suspicions about them seemed confirmed.
When they first get here… most people get here… you're skeptical, you're doubtful, you're fed up, you've been trying to find something to help you fall asleep.