reached the edge of the parking lot, the boy and his father were already climbing into a car. Robert broke into a run, but Tom could see that was pointless. He stayed where he was, watching the car back out of its space and drive away. It turned left out of the lot and then right, so that it disappeared almost instantly.
Thatâs it, then, Tom thought. Weâve lost them.
He was amazed at the sudden burst of feeling that swept through him. He could have laughed out loud from sheer relief.
10
THE NEW CAVERN WAS FULL OF NOISE AND TERROR. PEOPLE began to blunder around, shouting and pushing at each other as they struggled to get away from the break in the wall. Lorn tried to talk above the yelling, to get them to calm down. But her voice wasnât strong enough, and she couldnât make them hear her.
It was Perdew who stopped the chaos. He lifted the glowing wood high above his head, so that it flared suddenly brighter, and as the others turned to look, he bellowed at them. âDO YOU WANT IT TO HEAR YOU?â
That brought immediate silence. Total and terrified. Perdew let it register with everyone. Then he looked at Lorn.
âOK,â he said. âWhat do we do now?â
âWeâve got to fill all this in!â Tina said, not waiting for Lorn to answer. âPut it all back just the way it was, before we ever started digging!â
âNo!â Lorn said. âNo, we canât!â
She hadnât worked out what else they could do. Not yet. But she knew that they had to be down under the earth. It was like hearing a voice in her head. No one will get you down there. Youâll be safe under the ground. The idea of abandoning the new space they had made filled her with panic.
âSo what are we going to do?â Perdew said steadily. âSit here and wait to be eaten?â
âOf course not!â Lorn forced herself to start thinking. âWeâve got to do somethingâbut we canât fill in everything weâve dug out. How could we ever collect enough earth?â
âOK.â Perdew wasnât going to let it drop. âIf we canât use this, then weâll have to find a new cavern after all.â
Oh no, Lorn thought. Youâre not getting away with that. She looked straight back at him. âYou want to go out exploring? In the cold?â
For the first time, she felt a response from the others. She could see them imagining what it would be like trekking over the hard, frosty earth, with the icy air eating into their bones. It was too late for exploring now, and they all knew it. They had to stay where they were.
âSo what are we going to do about this hole?â Dess said. Not belligerently like Perdew, but desperate for an answer.
âWeâllââ
Weâll have to talk about that, Lorn was going to say. But the words came out differently. Because suddenly she saw what they could do.
âWeâll build a wall,â she said.
No one was expecting that. She felt their surpriseâand then their bewilderment. They didnât understand what she meant.
She turned toward the fallen earth, eager to explain. âBring the light here, Perdew. So everyone can see.â
The wood had almost burned through, but Perdew carried it over to her, standing to one side of the hole to light it clearly.
Lorn swept her arm in a wide arc in front of the wall. âWe can build a barrier right across this end. With big stones. If we make it thick enough, it will keep anything outâand weâll still have the space on this side, to use as a storeroom.â
She saw them nod as they started to take it in, and she knew they were going to agree.
âThat would solve a lot of things,â Shang said thoughtfully. âIf we put the stores down here, weâll have more room up above.â
âIt wonât solve anything,â Perdew said. âItâll just leave us back where we startedâin the old,