...e kept for his own people an opening for treachery under the mask of an alliance. The people of Fidenae, where a Roman colony existed, were induced to go to war by a compact on the part of the Alban s to desert to them; the Veientines were taken into the plot. When Fidenae had broken out into open revolt, Tullus summoned Mettius and his army from Alba and marched against the enemy. After c...