 The expedition approached the lake from the south west but Grant was often sick and was not able to travel with Speke much of the time.As during the first trip, in this period of history, Arab slave traders had created an atmosphere of great distrust towards any foreigners entering central Africa, and most tribes either fled or fought when encountering them as they assumed all outsiders to be potential slavers.Lacking a great deal of guns and soldiers, the only thing the expedition could do was make peace offerings to locals, and both men were severely delayed and their supplies depleted by demands for gifts and passage fees by smaller local chieftains.