Everyone fell on the various victims.
I muttered in an undertone to Terentia, "Dare I ask where you learned the knockout blow? From one of the Vestals' lictors, preparing you for married life with Ventidius?"
"Instinct!" she snapped. "I can supervise here. Now, Falco-find Gaia!"
She turned to where Anacrites was still standing with my dog in his arms. Unusually for her, Nux had retained her interest in a trophy. Her white teeth firmly gripped the little horsehair mop-surely the one the builder had made for Gaia.
Feeling stupid, Anacrites put the dog down, and she ran to sit in front of me, wagging her unhygienic stump of tail against the floor mosaic.
"What is it, Nux?"
I bent down and took the mop from between her jaws. Being Nux, she clung on for some time, growling happily and shaking her find while I tugged it free. She started to bark.
"Good girl." When she saw that I was now prepared to notice her, she began running around in wide circles in front of me. I followed. Nux took off and streaked back the way we had come from the garden. Whenever she reached the corner of a corridor, she stopped and barked. It was a harsh, high, piercing noise, meant to hold my attention. Nothing like her normal pointless woof.
I had left everyone behind as I strode after my excited pet. She nosed her way along passageways and through doorways, looking back sometimes to check that I was still with her. "Good girlie! Show me, Nux."
Out into the kitchen garden went the dog. Past the seat where so little time ago I had been talking to Terentia. Through the newly dug beds, under the despoiled pergolas, into the brambles and tangled creepers that ran back to the high wall.
Yesterday we were supposed to have searched everywhere, even here. Slaves with scythes had hacked at the creepers. I had trodden down parts of the undergrowth myself. I had told some of the helpers to crawl into the thickets.
Not good enough, Falco. There was a place where an angle of the boundary wall turned away. Bushes shielded it from obvious view nowadays, but it had once had a purpose. In fairness to me, I had seen someone else exploring this area yesterday. But it is never safe to rely on other people. In a real emergency, you must double-check every inch of ground yourself. Never mind if your helpers grow fractious because it looks as if you do not trust them. Never mind if you exhaust yourself. Nobody else is truly trustworthy. Not even when, like you, they know a child's life is at stake.
Nux was going crazy now. She had reached a small clearing, where stonework had defied the encroaching undergrowth. This might be where Nux had found the mop. Gaia had definitely been playing here. Somehow, she had even managed to make herself a fire. Perhaps she spent hours rubbing sticks together to do it; more likely she took some embers from the burning garden rubbish nearer the house. The ashes of her mock Vestal fire, cold now, of course, formed a neat circle. They were quite clearly different from the great mounds of garden clippings, and if anyone had shown me these yesterday, I would have tracked down the child there and then.
I spotted a kitchen pitcher, lying on its side.
Nux ran to the pitcher, sniffed at it, then ran past and lay down with her nose between her paws, whining frantically.
"Well done, Nuxie; I'm coming."
I could see what had happened. Little hands had pulled back a curtain of weeds to discover an old flight of four or five shallow stone steps. Ferns grew in crevices and green slime lurked on the lower slabs. Anyone familiar with springs would realize that this had once been a source of water, though it must have been an inconvenient distance from the house. Even a six-year-old girl, if she was bright and capable, would work out what she had found; then, forbidden to trouble the kitchen staff, she might try to see if she could fill her pitcher here. The steps led to the head of a well shaft. When it went out of use, it must have been boarded over. Over the years, the boards had rotted. So when Gaia tried to move them or walk on them, some gave way and fell into the shaft. Gaia must have gone down with them.
I knelt at the edge. I leaned over too far, and a sharp rattle of stones frightened me; the edge was crumbling perilously. All I could see was darkness. I called out. Silence. She had drowned or been killed by the fall. Nux began to bark again, with that terrible sharp yowking noise. I gripped the dog and held her. I could feel under her warm rib cage that she was panting as fast as I. My heart was breaking.
"Gaia!" I yelled down the echoing shaft.
And then from the impenetrable darkness a faint whimper answered me.