Book excerpt: Eight hundred years after the most horrific battle of the Idiran war, light from its world-destroying detonations is about to reach the Masaq Orbital, home to the Culture. Major Quilan has supposedly come to take the exiled Composer Ziller back to their war-ravaged home world, Chel. But despite the major's civilized veneer, his true mission may be the death and destruction of an entire civilization.