creatures in the lake around them, though none showed their heads above the glass-smooth surface.
Once, they passed over something so long and huge she gasped.
"That is only a mereguint," the toad told her, "one of my lady's water dragons. She has two: great enough to swallow ships. If you should fall in, little messenger, they will make short work of you."
A vision filled Aeriel's mind of the treacherous mudlick rearing back to dump her into the teeming Mere for sheer sport. She clutched tighter to the great toad's back.
"See me safe to the palace," she warned, "or you will answer to your mistress for it. I bear Ravenna's gift for her, more precious than my life."
The mudlick only laughed. Aeriel realized it could feel her shaking—for even without the dragons, she was terrified, and not just of the enchanted water, but of any water. She could not swim, and so clung to the mudlick with all her might. It swam steadily on. The great castle hove nearer, rising up from the Mere.
These spires could be only the top, she thought in awe, only the tiniest tip of an enormous keep. The rest lay below the lake. Again the mudlick's booming chuckle.
"You thought it would all be underwater, didn't you? Used to be, not many years past. But it's grown so, she can't keep it all beneath the surface now."
One eye swiveled to look at her. Aeriel managed to glare back. As the mudlick brought her to the edge of the crystal keep, Aeriel scrambled off in relief onto a narrow terrace a few inches above the waterline. To her astonishment, she found that the ledge was cold, far colder than the mudlick's skin.
Glass smooth, it was so chill the soles of her feet adhered to it. Uneasily, she shifted from foot to foot.
What stone, what jewel had been used to make this tower? The pearl upon her brow brightened, suffusing her with warmth.
"Well, little sorceress," boomed the mudlick, "I have brought you here. Now enter if you can."
With a final deep laugh, it sank from sight below the surface of the Mere. Nightshade was very late.
From the tilt of the stars, she saw that it must be nearly Solstarrise. She shifted her feet once more to keep the soles from binding to the stone. If not for the pearl, she realized, the cold would have been unbearable. Gazing up at the blank, unbroken white walls of the palace, she began to walk along the landing, searching for a door.
She walked until she felt dizzy, her neck stiff, but she could find no window, no portal, no chink or opening. At last she stopped, baffled and exhausted. Desperation ate at her. Somehow she must get in.
She had not come all this way to be turned back now. Aeriel felt an odd stirring in the back of her mind, a low, almost unintelligible murmuring.
Place your hand against the stone, it seemed to whisper—so softly that in the next instant, she was not even sure it had spoken at all. Nevertheless, she placed one palm against the frigid surface, gingerly, lest it stick. Nothing happened. Frustration welled in her. She pressed harder, heedless now, throwing her whole weight against the keep. Open, she cried silently, angrily. Let me in!
The stone surface beneath her hand abruptly vanished. Aeriel stumbled forward. Catching her balance, she spun around to behold the outer wall now parted in a broad archway. Pearllight gleamed on the clear, white crystal of the palace interior. Aeriel touched the jewel upon her brow again, astonished.
Even as she watched, the wall seamed soundlessly together once more, forestalling retreat.
She stood in a deserted hallway. Starlight filtered in through the crystalline walls. Despite the pearl's warmth, she was shivering hard. The fierce cold of the Witch's keep numbed her. Her breath came in gasps, swirling up in puffs like scentless smoke. Something told her she would be well enough as long as she kept moving. Though the pearl's power was great, it was subtle. She must not pause, must not rest.
Aeriel started down the long, empty hall.
The walls around her were uneven but smooth, in some places nearly transparent. Sometimes she sensed she was passing along the outer wall of the keep and what lay beyond was open sky. It must be nearing Solstarrise by now, she knew. Her breath, when she leaned closer, seeking to peer beyond the ripples, fogged the crystal stone. Once she brushed against it in passing, and the dry cold