Shackleton returned to the lecture circuit and published his own account of the "Endurance" expedition, "South", in December 1919. In 1920, tired of the lecture circuit, Shackleton began to consider the possibility of a last expedition. He thought seriously of going to the Beaufort Sea area of the Arctic, a largely unexplored region, and raised some interest in this idea from the Canadian government. With funds supplied by former schoolfriend John Quiller Rowett, he acquired a 125-ton Norwegian sealer, named "Foca I", which he renamed .