Czarniecki's army returned to Poland and began to engage Moscovite units who had been invading from the East during 1660. Pasek took part in the Battle of Polonka in June and the Battle of Basya in October 1660. He refused to take part in the Confederacy that formed in over a lack of army pay 1661 and detested that the army would take such action just as the tide of the war against Muscovy was turning. Instead he left camp to return to his home near Łódź, before setting off to rejoin the army of Hetman Czarniecki near . Along the way he was involved in a mix-up between loyalist and confederate forces, arrested as a suspected confederate envoy and brought to the Royal Court at Grodno. After successfully arguing his innocence and loyalty to the King, the case against him was overturned by King John II Casimir and he was given letters to take to Czarniecki. After this he was tasked with escorting Muscovite envoys to the 1662 Diet at Warsaw. Later that year he went on a pilgrimage to Częstochowa where he begged for absolution for his unfulfilled engagement to Eleanor while in Denmark.