
Tigellans had power in enormous quantities, power from a unique
inexhaustible source, that was the centre of their religion and basis of
their civilisation, the Dodecahedron. A great crystal had mysteriously
descended from the skies in the distant past. Now enshrined in the Power
Room, the Dodecahedron was the mystic, glowing core of all Tigellan life.
But the Dodecahedron was failing. Not completely of course, or even
continually. Some of the time it glowed as brightly as ever, powering the
entire underground civilisation. But recently, the power had begun to
fluctuate. Sometimes it would suddenly fail, sometimes, even more
dangerously, there would be an unexplained surge. And the fluctuations were
getting more frequent...
The whole of the interior of Tigella was honeycombed with caves and
tunnels. Over the years these had been extended and developed by the
Tigellans as their civilisation grew. The Tigellans called them walkways,
and here or there one might still see a patch of exposed rock behind the
metal cladding of the tunnels, or the occasional rock-walled chamber, still
in its natural cave-like state.
At the end of one of the service tunnels, close to the Power Room, an
attractive young woman called Caris was frantically at work on a smoking
control panel, watched by a terrified, white-faced technician. The panel
had suddenly gone into overload and Caris had been sent to deal with it.
She was a Savant, one of the scientific and technical caste of Tigella, and
like the rest of her Guild she wore a neat white quilted jacket, trimmed
with black at the belt and collar, black trousers and boots. Her shining
yellow hair was neatly trimmed in a plain functional style.
Working against time, Caris struggled frantically to replace a burnt-out
power unit and prevent a major overload. She had almost succeeded when
another inexplicable power surge made all her work in vain. She looked at
the power gauge and shouted, 'Look out, it's going to blow!' Covering her
face with her hands Caris threw herself backwards, just as the panel
exploded with a blinding flash.
The technician at her side was not so quick, or not so lucky. He fell
screaming to the floor, his hands to his face.
Caris operated her portable communications set, relieved to find it still
working. 'Emergency, emergency! Burn-out on walkway nine. Medical and
lighting assistance needed immediately.'
Not far away in Central Control Caris's voice came crackling out of a
loudspeaker. The enormous control room, lined with instrument panels from
floor to ceiling, was the nerve centre of Tigellan civilisation, monitoring
and controlling the energy flow produced by the Dodecahedron in the Power
Room. Now the power was out of control, and here too lights were fading and
brightening again, dials flickering wildly.
At the main control desk sat Deedrix, one of the inner group of Chief
Savants, monitoring the flow of emergency messages, and issuing orders to
deal with the crises that constantly arose. He wore the same neat black-
and-white uniform as Caris, and like her, his blonde hair was trimmed short
and neatly brushed. There was a close resemblance between all the Savants -
their enemies said they all looked and thought alike.
Deedrix acknowledged Caris's message and issued a rapid stream of orders.
He switched back into Caris's circuit. 'Are you hurt, Caris?' There was
more than professional concern in his voice. He waited tensely until
Caris's voice came back.
'No. One of my technicians got a flash-burn, but it's not too serious.'
'Good. Medical detail has been despatched.'
Another message came through. 'Air Purification Unit One is
malfunctioning.'
Deedrix switched to another channel. 'Open air vents three to eight in Unit
One.'
A shadow fell across the control desk, and he glanced up to see a cowled
figure standing over him. Deedrix jumped to his feet. Despite the