"It's nice to meet you, Tinka," said Lydia. "Er, no, I don't have a whisk. Do you mean my wand?"

Lydia withdrew her yew wand from her pocket to show the house elf. "It's almost as good as a whisk, right? And do you mean some of the walls have secret passages? That's brilliant!"

Lydia followed the little house elf, her excitement growing. This tour was going to be amazing, she just knew it, and maybe she'd learn something none of her fellow first years knew about so she could impress them with her new knowledge of the castle.