So long did it last, that there was time to distinguish its configuration.

It seemed like a mighty tree inverted, pendent from the sky.

The whole country around within the angle of vision was lit up till it seemed to glow.

Then a broad ribbon of fire seemed to drop on to the tower of Castra Regis just as the thunder crashed.

By the glare, Adam could see the tower shake and tremble, and finally fall to pieces like a house of cards.