H. Rider Haggard 
The Ghost Kings 

The author wrote, ‚The Zulus have a strange story of a white girl who in Dingaan’s day was supposed to ‚hold the spirit‘ of some legendary goddess of theirs who is also white. This girl, they say, was very beautiful and brave, and had great power in the land before the battle of the Blood River, which they fought with the emigrant Boers. Her title was Lady of the Zulus, or more shortly, Zoola, which means Heaven.‘ This is her story.