Rowland Bingham, Into Africa's Interior by Janet & Geoff Benge and published by YWAM.
At age twenty Rowland Bingham committed himself to serving not only in Africa, known as the white man's grave, but in Africa's Sudan interior, where few missionaries had ventured and those who did soon dies of disease or retreated in defeat. In an amazing story of vision and faith, God used this willing servant to open a way for the gospel's light to shine on millions of people once though beyond reach.