"Why aren't you saying anything?" Mr. Scott asked. 

But before I could speak, Ace rushed down the stairs and walked toward us. 

"Oh my goodness," he said softly. "I am so sorry, Sabrina." 

"What are you apologizing for?" Mr. Scott asked. "What have you done this time?" 

"I spilled my yoghurt on her by mistake," he answered. "I didn't know I did at first, but hearing you ask what the stain on her dress was, I just knew it was the yoghurt." 

"Oh really?" Mr. Scot asked, ...