seen. Since where one act of magic has occurred, anything is possible, add
to this halt and sighting sufficient magnification to see events on the
home planet; then they might be able to watch the crowning of Gol of
Dobrai, a small, uninteresting and short-lived nation distinguished only by
Gol himself. He had been the first king in recorded history.
And yet a backward look with the comparatively minor magic of the Ertak
Effect showed what at first glance seemed to be a different segment of the
skies altogether. The enormous glare of the initial explosion
141
142 James Blish
had died away in slightly less than a year, leaving be
hind a sprawling, growing cloud like a glowing cancer
which seemed slowly but inexorably to be reaching
after them. The interferometer showed that it was in
fact expanding at the rate of 0.31 angular seconds per
year; and since not even the Ertak Effect could pro
duce absolute simultaneity between ship time and the
time of an object three thousand light years away,
what they were seeing on the screens was the after
matb of the ex ‘ Plosion as it had appeared between five
and six years after the event-and since that day was
in fact closer to fifteen years in the past, the malignant
nebula was now actually far larger than the screens
could show it to be.
The central mass of the nebula, which could not be seen, but only
photographed by infra-red light, was a smooth sphere. It was surrounded by
an irregular, interwoven complex of filaments and jets of glowing hydrogen,
brilliantly visualized through a crimson filter. The total effect was
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