General Lincoln immediately began marching west from Worcester with the 3,000 men that had been mustered. The rebels moved generally north and east to avoid him, eventually establishing a camp at Petersham, Massachusetts. They raided the shops of local merchants for supplies along the way and took some of the merchants hostage. Lincoln pursued them and reached Pelham, Massachusetts on February 2, some from Petersham. He led his militia on a forced march to Petersham through a bitter snowstorm on the night of February 3–4, arriving early in the morning. They surprised the rebel camp so thoroughly that the rebels scattered "without time to call in their out parties or even their guards". Lincoln claimed to capture 150 men but none of them were officers, and historian Leonard Richards has questioned the veracity of the report. Most of the leadership escaped north into New Hampshire and Vermont, where they were sheltered despite repeated demands that they be returned to Massachusetts for trial.