The catastrophe, when it comes, will be beautiful at first. It is a balmy evening in late September 2012. Ever since the sun set, the dimming skies over London have been alive with fire.
Pillars of incandescent green writhe like gigantic serpents across the skies.
Sheets of orange race across the horizon during the most spectacular display of the aurora borealis seen in southern England for 153 years.
Beautiful- but deadly.
And then, 90 seconds later, the lights start to go out. Not the lights in the sky - they will dazzle until dawn - but the lights on the ground.
Within an hour, large parts of Britain are without power.
By midnight, every mobile network is down and the internet is dying. Television - terrestrial and satellite - blinks off the air.
Radio is reduced to a burst of static.
Mad Max time- here we come. Actually, an event like this did occur back in the 19th century-
This last happened on the morning of September 1, 1859.
A bright flash of light erupted from the Sun's surface and detached itself from it.
Just 48 hours later it struck, and the effects were extraordinary.
Brilliant aurorae lit the Earth's night skies right down to the Tropics - their light being so brilliant it was possible to read a newspaper at midnight.
In California, a group of gold miners were roused from their bed hours early, thinking the dawn and a new day's prospecting had come. It was 2am.
Just one question- will this cause the zombies or will they come after?