for it,” Xemerius went on, taking no notice of me. “Some of the walls on the first floor are double, with passages in between them—passages so narrow you can tell they’re not built for people withbig bums.”
“Really?” I’d never discovered those passages myself. “How do you get into them?”
“The doors are covered up with wallpaper in most of the rooms, but there’s still a way in through your great-aunt’s wardrobe and another behind that big, solid sideboard in the dining room. And one in the library, hidden behind a swiveling bookcase. Oh, and there’s a link between the library and thestairwell leading to Mr. Bernard’s rooms, and another going up to the second floor.”
“Which would explain why Mr. Bernard always seems to appear out of nowhere,” I murmured.
“And that’s not all. There’s a ladder inside the big chimney shaft on the wall next to number 83 next door. You can climb it all the way up to the roof. You can’t get into the shaft from the kitchen anymore, because theold fireplace there has been bricked up, but there’s a way in with a flap over it at the back of the built-in cupboard at the end of the first-floor corridor, big enough to let Santa Claus through—or your weirdo of a butler.”
“Or the chimney sweep.”
“And then there’s the cellar!” Xemerius acted as if he hadn’t heard my down-to-earth remark. “Do your neighbors know this house has a secret, andthere’s a second cellar underneath the cellar that everyone knows about? Although if you go looking for anything there, you’d better not be scared of spiders.”
“Then we’d better look somewhere else first,” I said, quite forgetting to whisper.
“If we knew what we’re looking for, of course it would be easier.” Xemerius scratched his chin with one of his back paws. “I mean, basically it could beanything: the stuffed crocodile in the recess, the bottle of Scotch behind the books in the library, the bundle of letters in the secret drawer of your great-aunt’s desk, the little chest in a hollow place in the brickwork—”
“A chest in the brickwork?” I interrupted him. And what recess was he talking about?
Xemerius nodded. “Oh, dear, I think you’ve woken your brother up.”
I spun round. Mytwelve-year-old brother, Nick, was standing in the doorway of his room, running both hands through his untidy red hair. “Who are you talking to, Gwenny?”
“It’s the middle of the night,” I whispered. “Go back to bed, Nick.”
Nick looked at me undecidedly, and I could see him waking up more and more every second. “What was all that about a chest in the brickwork?”
“I … I was going to look forit, but I think I’d better wait until it’s light.”
“Nonsense,” said Xemerius. “I can see in the dark like a … well, let’s say an owl. And you can’t very well search the house when everyone’s awake. Not unless you want even more company.”
“I can bring my flashlight,” said Nick. “What’s in the chest?”
“I don’t know exactly.” I thought for a moment. “It could be something left there by Grandpa.”
“Oh,” said Nick, interested. “And whereabouts is this chest hidden?”
I looked inquiringly at Xemerius.
“I saw it to one side of the secret passage behind that fat man with whiskers, the one sitting on his horse,” said Xemerius. “But who goes hiding secrets—I mean treasures—in a boring old chest? I think the crocodile is much more promising. Who knows what it’s stuffed with? I’m in favor of slittingit open.”
I wasn’t. I had an idea I’d met that crocodile before. “Let’s look in the chest first. A hollow place doesn’t sound bad.”
“Boring, boring, boring!” repeated Xemerius. “One of your ancestors probably hid his tobacco from his wife in it … or…” Obviously he had just had an idea he liked, because now he suddenly grinned. “Or the chopped-up body of a maid who stepped off the straight andnarrow and