 Having found the new ruler of the Upper Congo, Stanley had no choice but to negotiate an agreement with him, to stop Tip coming further downstream and attacking Leopoldville, Kinshasa and other stations.To achieve this, he had to allow Tip to build his final river station just below Stanley Falls, which prevented vessels sailing further upstream.At the end of his physical resources, Stanley returned home, to be replaced by Lieutenant Colonel Francis de Winton, a former British Army officer.