The Doctor grabbed hold of Angela by the collar of her camouflage jacket and heaved. The creature"s twisted fingers grasped thin air as she was hauled out of the way. It roared furiously, drooling black spittle, surging up the tunnel after them, filling the narrow s.p.a.ce with its writhing veins.
"We"re not going to make it," gasped Angela, falling again.
"We"ve got to try!" Martha shouted.
The Doctor pushed both of them ahead of him and then turned to face the snarling beast. There was no hint of reason or intelligence now, just an insane anger.
Grim-faced, the Doctor pointed his sonic screwdriver straight up at the ceiling. It gave a shrill whine, quickly building to an ultrasonic squeal. There was a noise like a crack of thunder reverberating down the tunnel and a shower of dust dropped from the roof onto the creature"s shoulders.
"Oh that"s a big help," said Angela, unimpressed.
But then a huge section of the roof caved in with an ear-shattering roar, and Duncan disappeared under an avalanche of collapsing soil and rock. The Doctor pushed Martha and Angela away as the tunnel was filled with dust and noise. Gradually the falling debris ended in a shower of loose earth and there was no longer any sign of the creature.
"How. . . how did you do that?" asked Angela.
"Sonic resonance," replied the Doctor, helping her towards the light of the tunnel entrance. "Found a weak spot in the roof, hit the correct frequency and hey presto."
"You nearly buried us too," said Martha, coughing drily. "What about Duncan?"
"I don"t know," the Doctor admitted. "I can"t see him. But at least he won"t follow us now."
There was a dull rumble over their heads and an ominous trickle of loose earth.
"Uh oh," said Martha as the whole tunnel began to shake. Dust and lumps of earth were pouring from the ceiling, and then the wooden cross-beams supporting the tunnel roof began to sag, splitting apart with sudden, fierce cracks.
"Run!" yelled the Doctor. But they didn"t get far. The tunnel was suddenly filled with falling earth and everything went black.[image]
Jess was still making a fuss. At first Gaskin thought she was upset about the stone, so he wrapped it up again in a tea towel and, after a moment"s consideration, put it in a drawer in the kitchen.
Nigel Carson remained spark out in the conservatory, but Jess still wasn"t happy.
"Be quiet, there"s a good girl," Gaskin said. But the dog was having none of it. "What"s got into you?"
The Collie ran across to the conservatory doors and whimpered.
"Oh, you want to go out, do you?"
Jess gave a peremptory "Wuff!"
And it was at that moment that Gaskin suddenly had the strangest feeling like a chasm of anxiety opening up inside his guts as he remembered Angela disappearing into the tunnel alone. Jess barked urgently again and this time Gaskin knew exactly what to do.
He opened the door and the dog shot out into the garden. Gaskin hurried after her.
At the tunnel entrance, Jess stood and barked loudly again. Gaskin peered inside but it was too dark to see anything. One thing was for sure, however: Angela hadn"t yet returned, and nor had Martha Jones. Gaskin knew he should go into the tunnel to look for them, but he couldn"t bear the thought of such a horribly confined s.p.a.ce. He loved the wide-open s.p.a.ces, the outdoors, craggy mountains under wide blue skies. The idea of going into that narrow patch of darkness made him feel physically ill.
Jess looked up at him with her big brown eyes, asking the impossible. "I can"t go in there," Gaskin told her plaintively. "You know I can"t."
Jess whined and went into the tunnel alone.
"Oh, all right," muttered Gaskin crossly.
He followed her inside. It was all right for the first few yards because of the light from outside, but it quickly grew dark and the smell of earth was overwhelming. Gaskin felt his old heart begin to race.
Summoning the courage that had served him well in his days in the Parachute Regiment, he fought back the urge to turn around and followed Jess further into the shadows.
It wasn"t long before he met an awful sight: the way ahead was completely blocked by soil and rock and a thick wooden beam lay diagonally across the tunnel.
"Great Scott! There"s been a rockfall!" Gaskin forgot all about his claustrophobia as Jess barked again, loud and urgent. She must have sensed it in the house, felt a faint tremor in the earth, or perhaps heard the distant subterranean thunder. But now she"d found something in soil, something that stirred near the ground, under the fallen roof beam.
A thin, white hand.
"Angela!" Gaskin grasped the hand and pulled. The hand, cold and shaking, held on to him with an iron grip as he hauled Angela out of the earth. Loose soil poured off her camouflage jacket and hat, and, with a sob of relief, she grabbed hold of Gaskin. He pulled her upright. "Thank G.o.d you"re all right!"
"Martha. . . and the Doctor. . . " she panted. "They"re still in there!"
Jess was barking and prancing around their knees in excitement as someone else slowly emerged from under the roof beam. Covered in soil and dust, coughing and choking, Martha Jones clambered out, followed by the Doctor.
"Mr Gaskin!" said the Doctor cheerily as he stood up. In the dim light of the tunnel entrance, his face was streaked with cuts and mud.
He offered a grimy hand. "How nice to meet you again!"
They went straight back to the manor. Martha was amazed to find that the sun was already setting and there was a chill in the air as they walked across the garden. The adrenalin was fading now, leaving her nervous and exhausted.
She shivered, and the Doctor put his arm around her. "Cheer up!
We"ve lived to fight another day."
But Martha kept thinking about Duncan. She"d liked him; it had been horrible to see him transformed and inhuman. She was relieved to have survived, of course, but what about him? If the trans.m.u.tation hadn"t killed him, then surely the rockfall must have. She wondered about it all the way back to the house.
In the conservatory, Nigel Carson was still unconscious.
"Been like that ever since I brought him back," Gaskin told them.
"I much prefer him that way," said Angela.
Gaskin wanted to take Angela to the A&E department at Wardley Hospital, but she was having none of it.
"I"m perfectly all right," she insisted. "All I need is a bath and some of that brandy." All the same, she accepted a chair from the Doctor and sank into it with a groan. "I"m beginning to think Sadie has a point.
Perhaps I am getting too old for all this gallivanting."
"Nonsense," said the Doctor. "Keeps you young look at me!"
Martha insisted on examining the old lady. "No bones broken, at least. You"re lucky. Just minor cuts and contusions."
"She"s as tough as old boots," said Gaskin, handing her a drink.
"Here, get this down you."
The damage could have been worse for all of them. Most of the rockfall had been deflected by the fallen cross-beam, under which the three of them had been able to shelter. Martha and Angela were bruised and dusty, but the Doctor had a nasty graze on his forehead. Angela"s mobile phone chirped. "Excuse me." She opened it and then held it out at arm"s length as she tried to focus on the display.
"Confounded thing why do they make the writing so small? Oh, it"s a text from Sadie asking where we"ve got to. It"s only just come through."
"You must have been out of signal range in the tunnel," said Martha.
"I"d better give her a call, fill her in on what"s been happening." The old lady paused for a moment. "Although I"m not at all sure where to begin. . . "
"Couldn"t agree more," said Gaskin gruffly. He turned to the Doctor.
"I think it"s high time we had an explanation. I had been told you were languishing at the bottom of the village well."
"I never stay in the same place for long," said the Doctor, who was sitting on a stool dabbing at the blood on his forehead with a handkerchief. "Especially if I find myself sharing it with a mindless alien predator."
"I beg your pardon?"
"That"s what I found at the bottom of your well: a particularly nasty example of extraterrestrial life called a Vurosis. Intelligent proto-molecular parasite from the Actron Pleiades star system. They usually prey on defenceless planets containing easily adaptable carbon-based life forms, such as Earth. The Vurosis arrives as a seed, germinates underground and then starts to spread and reproduce by trans.m.u.tagenic alteration of the indigenous dominant animal population." The Doctor looked at each of them in turn. "That means you lot, by the way. Humans."
Gaskin blinked. "I didn"t understand a word of that, let alone believe any of it."
The Doctor shrugged. "I wouldn"t expect a fly to believe in chemical insecticides, but there we are." He mimed using a fly spray. "Pssh! Erk.
Dead fly."
Gaskin huffed. "But even so! Extraterrestrials? Here in Creighton Mere? Poppyc.o.c.k."
"Be quiet, Henry," said Angela quietly. "You didn"t see it."
"Are you trying to say you did?" "Yes. In the tunnel. It was chasing the Doctor and Martha." Angela sipped her brandy and shuddered. "It was crushed when the roof collapsed."
"Actually, that wasn"t the Vurosis itself," the Doctor said. "That was just a human being trans.m.u.tated into a proto-Vurosis hybrid."
"A human being?"
"Duncan Goode, to be exact," Martha said.
Angela looked horrified. "How?"
"Telekinetic trans.m.u.tagenics," said the Doctor. He caught Angela"s look and mistook it for doubt. "Probably. Possibly. Well, all right, it"s just a guess. But can you explain why else a perfectly healthy human being would suddenly transform into a proto-molecular parasite?"
Angela said that she couldn"t.
"Question is why would it do that?" pondered the Doctor aloud.
His dark eyebrows knitted together in concentration. "I mean, the Vurosis parasite is an intelligent, thinking being. Murderous and completely without any human moral compunction whatsoever, but it is intelligent. The thing I met was just. . . empty. The lights were on but no one was at home. . . "
Gaskin cleared his throat. "This alien thingummy. . . " he began, almost embarra.s.sed to mention the idea. "Could it have anything to do with a rather odd stone?"
The Doctor pulled a face. "Stone?"
"It"s probably nothing. Forget I mentioned it."
"Do you mean the one Nigel Carson was guarding before?" asked Martha.
"Er-yes."
"Guarding?" repeated the Doctor.
Martha described the stone she had found in Nigel"s possession when she and Angela had discovered him unconscious outside the manor.
"You can have a look at it if you like," offered Gaskin.
He led them into the kitchen and took a small bundle out of one of the drawers. He put it on the kitchen table and unwrapped it. They all gathered around the stone. "It belongs to Nigel Carson,"
explained Gaskin.
"No it doesn"t," said the Doctor. "It belongs to the Vurosis."[image]
"We found Carson in a state of collapse," Martha said. "When he came around, he was behaving very oddly and he seemed very possessive regarding this thing. Whatever it is."
"I thought it might be some kind of alien fossil," said Gaskin, a little self-consciously. "A meteorite, perhaps."
The Doctor shook his head. He had picked the object up, examined it, sniffed it, shaken it next to his ear to see if there was anything loose inside it. "I don"t know what it"s made of, but it isn"t rock."
"It looks horrid," commented Angela. "Like something old and dead, dug up from a grave."
"No," said Martha. "It looks alive to me. Sort of. . . grown."
"Like an egg, you mean?"
The Doctor shook his head again. "It"s not an egg, but it"s definitely organic."
"I meant, alive like us."
"I know what you mean," said Gaskin. "Almost as if it knows we"re here."
"Yeah," said Martha. "Like it"s thinking. . . "
"Ah!" The Doctor leapt to his feet with a sudden cry of joy. "Oh, yes! Yes! That"s it! Martha, you are brilliant. Have I ever told you that?
Brilliant!" He was suddenly full of manic energy, pacing around the room, staring at the object in his right hand while his left ran through his hair in a hundred different directions.
Martha smiled at him, incredulously. "What have I said?"
"Don"t you see? You"re absolutely right it is thinking! It"s a brain brain!"
"A brain?" Martha looked faintly disgusted as the Doctor continued to roam the room, throwing the object from hand to hand.
"Yeah, that"s right. A brain! But not just any brain, it"s the brain the brain of the Vurosis! I really should have spotted it sooner. Of course, that"s the trouble with being a genius. Sometimes you just can"t see the blindingly obvious."