H. Rider Haggard 
Heu-Heu 

Sir Henry Rider Haggard was an English writer of adventure novels set in exotic locations, predominantly Africa, and the creator of the Lost World literary genre. His stories, situated at the lighter end of the scale of Victorian literature, continue to be popular and influential. He was also involved in agricultural reform and improvement in the British Empire. This time around, Allan and his sidekick, the faithful and always amusing Hottentot Hans, go on a mission for the Zulu wizard Zikali (himself featured in many of the previous Quatermain books) and endeavour to bring back some leaves from the rare Tree of Illusions. They also attempt to delve into the mystery of Heu-Heu, a monstrous, 12-foot-tall, clawed and red-bearded semi-gorilla god who may or may not exist. (Excerpt from Goodreads)