walls gas lamps burnt, the mantles shielded by translucent shells that diffused the light. Among the thousandsof shells encrusting the rugged walls, here and there mother-of-pearl gleamed and crystals glittered. The floor was polished limestone, five or six yards in breadth, ending at a low stone parapet beyond which the stream flowed swift and smooth, satiny black, to its drop into the pool beneath.
One couldnât walk into the stream unaware, Daisy thought, but it wouldnât be difficult to fall over the low wall.
âAt least itâs warmer in here,â said Lucy with a shiver.
âThatâs partly the gas lights,â Howell told her, âand partly the insulating effect of the tons of rock around us.â
âDonât remind me!â With another shiver, Lucy looked up.
The upper part of the walls sloped inwards and gradually converged on either side. Their meeting point was beyond the reach of the lights.
âAre there stalactites?â Daisy asked. âAnd stalagmites? I can never remember which is which, but this is the right kind of rock for them, isnât it?â
âYes, the same stuff that furs pipes and kettles. There are some knobs and protuberances up there that may grow into stalactites in a few centuries. My uncle considered bringing some in from elsewhere or having some manufactured, but he decided against it.â
âAre the shells real?â Lucy sounded suspicious.
âOh yes. Most of them were already here when Uncle Brin bought Appsworth, though many had fallen off the walls. He brought in more to fill the gaps. In fact, some are where nature put them. Limestone and chalk are made up of ancient shells, you know. There are fossils, too.â
âIâd like to see those.â Julia joined them.
âIâll be happy to show you tomorrow, Miss Beaufort, if I get home in time. Iâm afraid the lightâs not good enough now to see them properly.â
âItâs not good enough to see anything much,â grumbled Rhino, lighting a cigarette as he appeared on the heels of his beloved. âWhat a waste of time!â
Daisy had to suppress an urge to shove him backwards down the steps. Someone else was probably behind him.
âRhino, darling,â came Lady Ottalineâs plaintive voice, âdo get a move on. I canât balance on this step forever.â
âIâm right here, my dear,â said Sir Desmond soothingly. âYou canât possibly fall.â
Rhino lumbered forwards. The Wandersleys entered the grotto, then Carlin, and bringing up the rear, Mr. Pritchard.
âWell, here we all are,â said their host, with a sigh of relief at having safely shepherded his unruly flock to their destination. âItâs as close to the way it used to look as I could make it, but the old pictures and descriptions arenât too clear.â
âDonât tell me the Appsworths had gas lighting put in,â Rhino said aggressively.
âNo, it would have cost much too much if I wasnât in the business. Donât worry, you canât see them in daylight.â
âNo good for photography,â Lucy grumbled.
âItâs wonderful, but a bit spooky, isnât it?â said Julia.
âDonât!â Lady Ottalineâs shudder combined the delicate with the theatrical.
âGrottoes were originally intended to be eerie.â Daisy had done her preliminary homework. âThat is,
originally
originally they were caves where hermits lived, the religious kind. But in English parks and gardens, they were supposed to be both picturesque and grotesque, and in general frightfully Gothic and romantic. The ownersââ
âItâs haunted!â shrieked Lady Ottaline, pointing towards the rear of the cave.
Everyone swung round. A cowled figure lurked in the dim depths. On silent feet, it glided to one side, started to withdraw, then suddenly vanished.
Â
NINE
âBy