Complex sentence: Returning to Africa, she went to meet Livingstone at the mouth of the Zambezi, but she fell ill in the camp at Shupanga on the Zambezi River and died there on 27 April 1862.
Split into simpler sentences: Returning to Africa, she went to meet Livingstone at the mouth of the Zambezi. However she fell ill in the camp at Shupanga on the Zambezi River and died there on 27 April 1862.