"He's the head of the Guédé, and a giver of life" she said immediately, because that was the most important part she remembered from the class "but he's also a ruler of death, and he likes tobacco and rum, so only students who are overage are allowed to take part in his ceremonies. Last year we just learned who he was, the only ceremony we did was for Papa Legba" she explained. This made perfect sense to Isis, and the idea that other schools might not study communication with spirits, much less that she was talking about something that could be really dangerous if dabbled in without an experienced adult in charge, didn't occur to her. She just assumed that Trudy would know what she was talking about. Besides, it wasn't really that interesting, not to a girl who had grown up knowing it was just one of the magical things that made up her worlds. But ghosts, on the other hand...
"I wish I could come to Hogwarts" Isis said, and then, because she didn't want Trudy to think she wasn't happy with her own school, she added "for a visit, I mean. Like an exchange student, you know?" she shivered though, because a ghost who was half-beheaded...eww.
Isis went over to stand just behind Trudy as she looked in the next chest. The ragged grey cloak didn't look very inspiring, but on the other hand, if they were meant to be in a dark, scary haunted house... "May I try it?" she asked, reaching out to take the cloak Trudy was holding up. Wrapping it around her shoulders, she attemped the 'old lady walk' again, though this time the effect was slightly lost because she had to pretend she was holding a walking stick having left her tree branch behind at the lake. "What do you think?" she asked "I mean, if we can find one that's a bit nicer than this, but... then if it was dark in the house, maybe you wouldn't see the old lady and we could bump into each other and act real scared...that would make people laugh, right?"
All the same, Isis hoped they could find a nicer cloak than this. She didn't want to complain, but it smelt like a family of mice had been nesting in it for several years.