When Pyrrhus learned this, he encamped about Nauplia and the next day dispatched a herald to Antigonus, calling him a coward and challenging him to come down and fight on the plain. Antigonus replied that he would choose his own moment to fight and that if Pyrrhus was weary of life, he could find many ways to die. The Argives, fearing that their territory would become a war zone, sent deputations to the two kings begging them to go elsewhere and allow their city to remain neutral. Both kings agreed, but Antigonus won over the trust of the Argives by surrendering his son as a hostage for his pledge. Pyrrhus, who had recently lost a son in the retreat from Sparta, did not. Indeed, with the help of Aristeas, he was plotting to seize the city. In the middle of the night, he marched his army up to the city walls and entered through a gate that Aristeas had opened. His Gallic troops seized the market place, but he had difficulty getting his elephants into the city through the small gates. This gave the Argives time to rally. They occupied strong points and sent messengers asking Antigonus for help. When Antigonus heard that Pyrrhus had treacherously attacked the city, he advanced to the walls and sent a strong force inside to help the Argives. At the same time Areus arrived with a force of 1,000 Cretans and light-armed Spartans. These forces attacked the Gauls in the market place. Pyrrhus, realising that his Gallic troops were hard pressed, now advanced into the city with more troops, but in the narrow streets this soon led to confusion as men got lost and wandered around. The two forces now paused and waited for daylight. When the sun rose, Pyrrhus saw how strong the opposition was and decided the best thing was to retreat. Fearing that the gates would be too narrow for his troops to easily exit the city, he sent a message to his son, Helenus, who was outside with the main body of the army, asking him to break down a section of the walls. The messenger, however, failed to convey his instructions clearly. Misunderstanding what was required, Helenus took the rest of the elephants and some picked troops and advanced into the city to help his father. With some of his troops trying to get out of the city and