Five Weeks in a Balloon the need to release gas or throw ballast overboard to control his altitude, allows very long trips to be taken. This voyage is meant to link together the voyages of Sir Richard Burton and John Hanning Speke in East Africa with those of Heinrich Barth in the regions of the Sahara and Chad. The trip begins in Zanzibar on the east coast, and passes across Lake Victoria, Lake Chad, Agadez, Timbuktu, Djenné and Ségou to St Louis in modern-day Senegal on the west coast. The book describes the unknown interior of Africa near modern-day Central African Republic as a desert,
John Hanning Speke with Burton going to Harrar, Abyssinia, and Speke going to Wadi Nogal in Somaliland . During this trip Speke experienced trouble with the local guide who cheated him and after they returned to Aden, Burton who had also returned, saw that the guide was punished and jailed and killed. This incident probably led to larger troubles later on. Now all 4 men traveled to Berbera on the coast of Somaliland from where they wanted to trek inland towards the Ogaden. While camped outside Berbera they were attacked at night by 200 spear wielding Somalis. During this fracas Speke ducked under