Upon leaving the council, the prince of Tarentum sent information of the resolution of the leaders to Phirous, who placed his own son in the prince’s hands as a hostage. The execution of the plan was fixed for the next day. To lull the garrison of Antioch in the greatest security, it was agreed that the Christian army should quit the camp, and direct its march at first towards the route by which the prince of Mossoul was expected to arrive, and that at nightfall it should meet under the walls of Ascalon. On the following day, early in the morning, the troops received orders to prepare for their departure. At some hours before night the Crusaders issued from their camp, and marched away, trumpets sounding and standards flying. After a march of a short distance, they retraced their steps, and returned in silence under the walls of Antioch. At a signal given by the prince of Tarentum, they halted in a valley on the west, and near to the tower of the Three Sisters, in which Phirous commanded. It was there that the leaders revealed to the army the secret of the great expedition which was to open to them the gates of the city. The projects of Phirous and Bohemond, however, were very near failing. At the moment that the Christian army quitted their camp, and all was prepared for carrying out the plot, a report of treason all at once was spread throughout Antioch. The Christians and newly-converted Mussulmans were suspected; the name of Phirous even was whispered, and he was accused of keeping up an intelligence with the Crusaders. He was obliged to appear before Accien, who interrogated him closely, and fixed his eyes intently upon him in order to penetrate his thoughts; but Phirous dispersed all his suspicions by his firm countenance. He himself proposed the proper measures to be taken against the traitors, and advised his master to change the commanders of the principal towers. This advice was approved of, and Accien determined to follow it on the morrow. In the mean time orders were given to load with chains and put to death, during the darkness of the night, all the Christians that should be found in the city. The renegade was then sent back to his post, loaded with praises for his carefulness and fidelity. At the approach of night everything appeared tranquil in Antioch, and Phirous, escaped from such threatening danger, awaited the Crusaders in the tower which he had agreed to surrender to them.