Zhenya was very puzzled indeed, but she raised her hand to give it a wild guess, "Hmm Professor I think... could that one there be Yew? Or Holly? And... that one there... I really don't know," she said, trying to rack her brain for a possible answer. Nothing!

She took a huge gulp of her hot chocolate. Maybe she just didn't have enough chocolate in her blood yet. That must be it. Chocolate made her smart.