THERE it was! The abrupt liberation of sound! As he timed it with his watch, Bassett likened it to the trump of an archangel. Walls of cities, he meditated, might well fall down before so vast and compelling a summons. For the thousandth time vainly he tried to analyse the tone-quality of that enormous peal that dominated the land far into the strong-holds of the surrounding tribes. The mountain gorge which was its source rang to the rising tide of it until it brimmed over and flooded earth and sky and air.