As soon as she heard of this, Sophia determined to seize the throne. She intended to attack the palace, kill Peter's friends and arrest his mother, and after that to deal with the young czar as circumstances demanded. She sent for the commandant of the streltsi who agreed to sound the men. He told them that Sophia's life was in danger, and that she had fled to a convent. The latter part of the story was true, as she had in fact retreated to such a place, from which she sent letters to the streltsi to come to her rescue. The commandant failed to secure more than 500 men; the other streltsi told him that there should be an investigation. Two of the streltsi went to Peter and reported to him what was going on, whereupon he moved to the famous Troitsa monastery. The (p. 150) Patriarch, foreign officers serving in the army, his playmates, and even a regiment of streltsi came to him to offer their services. Peter issued orders for the arrest of Sophia's favorite, the commandant of the militia. She begged the Patriarch to interfere but met with a refusal. The commandant under torture confessed the plot, and was beheaded. Sophia's other friends were arrested; some were executed while others were sent to prison; she herself was confined in the convent where she had found a retreat. Peter was now the czar, although he conducted the government in his own name and in that of his weak-minded brother Ivan. If Sophia had shocked the Russians by leaving the seclusion of the women's apartments, Peter's acts were likely to astonish them still more and to give offense. Rowing in a boat, instead of sitting in it surrounded by his grandees; working like a carpenter, instead of merely giving his orders through a courtier, and fighting with foreigners and grooms, were acts so unlike to what a czar should do, that Peter made a host of enemies. Little did he care! No sooner was he free to do as he pleased, than he rushed off to Archangel, the only port Russia could call her own, and there he saw salt water for the first time. He mingled freely with captains of the foreign merchant vessels and went out in their boats. On one occasion, he was out in a storm and came near being drowned; but this did not prevent "Skipper Peter Alexievitch," from putting out to sea again. Once he piloted three Dutch vessels. The young czar gave orders to construct a dockyard and to have boats built.