It began to fall.
tom
They could see by the moving needle on their dosimeters, which had been jammed against the upmost limit for the last 3 days. The machines, which had been been crackling a constant stream of white noise, eventually grew silent.
Leaving the exclusion zone the enormity of their sacrifice dawned on them. They sped down the dark track in silence. Too fast for the road. Not fast enough to save their souls.
It was only a matter of time.