On 20 September 1822, Pearce along with seven other convicts of Macquarie Harbour Penal Station: Alexander Dalton, Thomas Bodenham, William Kennerly, Matthew Travers, Edward Brown, Robert Greenhill and John Mather escaped while working on the eastern side of the harbour. Greenhill, who had the axe, appointed himself leader, supported by his friend Travers, with whom he had been sent to Macquarie Harbour for stealing businessman Anthony Fenn Kemp's schooner in an attempt to escape. About 15 days into the journey, the men were starving and drew lots to see who would be killed for food. Thomas Bodenham (or perhaps Alexander Dalton: see below) drew the short straw and Greenhill despatched him with an axe. At this point three of the company – Dalton, Kennerly and Brown – took fright and decamped. Kennerly and Brown reached Macquarie Harbour, but Dalton seemed to have died of exhaustion. That left Greenhill, Travers, John Mather and Alexander Pearce. With Greenhill and Travers acting as a team, it would be Mather's or Pearce's turn next. Pearce seems to have sided with Greenhill and Travers at this point, and Mather was the next victim. It was then that Pearce had some luck: Travers was bitten on the foot by a snake. Greenhill insisted they carry him for five days, but when it became clear he would not recover, killed him.