Tarzan and the golden lion with original illustrations

Sabor, the lioness, is killed by a black warrior leaving a orphan cub, a single male lion. Tarzan, Jane, and Korak returning from Pal-ul-don in Tarzan the Terrible find the cub, and Tarzan adopts him. He has a kinship with the animals that he playfully suggests to Jane comes from having a real ape father. The cub is suckled by a cur bitch, who had lost her pups to a great snake, in the village of Umaga. Her name is Za, meaning girl. They name the lion Jad-bal-ja, which means the Golden Lion in the language of the pithecanthropi of Pal-ul-don. When they finally reach home, they find their bungalow and some of the outbuildings have been rebuilt, and the fields are already being cultivated by the Waziri
Old Muviro, father of Wasimbu, greets them, and there is rejoicing for many nights. Tarzan's English foreman, Jervis, has completely restored everything so that it was precisely as it had been before the raid of the Germans. Tarzan raises the lion cub to hunt with him and to stalk and kill human beings by employing a man-dummy with meat tied at its throat as his sole means of feeding. He is also taught to "fetch" the meat and return it to his master. Korak bets Tarzan 100 pounds that he has created a man-killer. Tarzan disagrees. Jad-bal-ja kills an antelope and returns it faithfully to Tarzan, but when he snaps at the ape-man he is quickly thrown on his back. "Quick is Numa, quick is Bara, the deer, but Tarzan of the Apes is lightning." Jad then obeys the orders, "Lie down and Heel." Korak loses the bet. Tarzan has created the perfect companion, a Numa who follows his commands like a well-trained hunting dog.
Flora Hawkes and Esteban Miranda (a Spanish-born silent film actor and Tarzan look-alike) plan to rob the treasure vaults of Opar by substituting Miranda for Tarzan. Flora has been the maid in Tarzan's London townhouse for years and has learned the location of Opar. Miranda loves Flora, but she will hear no talk of love when it interferes with business. They conspire with four other men: John Peebles and Dick Throck (both English pugilists) Adolph Bluber, a fat German, and Carl Kraski a handsome Russian dancer. They have some trouble with the penny-pinching Bluber, who is putting up the 2000 pounds for the expedition, but finally agree to meet at a spot X on the map to equip the expedition. They will go there by twos, and Esteban is irked that Kraski gets to go with Flora. She tells the motley group that she will give them final directions when they reach spot O on the map.
The two-year-old Jad-bal-ja is now kept in a cage. Tarzan hears of a ivory-raiding, slave-running band to the west and south of his estate. Tarzan's income has been depleted by the war, so he plans another trip to Opar for gold and jewels. He takes 50 Waziri warriors but leaves Korak and Jad at home with Jane. Opar is 25 days trek from the farm, so he allots 2 months to the journey. 21 days out, he discovers a Bara, the deer, with a manufactured arrow in its flank. He follows the blood trail and sees a footprint of a large white man. He runs his fingers through his thick, black hair in a characteristic gesture of puzzlement. Later he finds a dead Mangani killed with one of the same machine-made arrows. He considers this to be murder. Tarzan finds the Mangani tribe, and Gobu tells him that they saw Tarzan kill the dead ape. Pagth, the King of this tribe tells him to go away. He leaves and finds more footprints -- barefooted blacks, booted white men, and those of a woman or a child. The tracks lead to Opar. Presently he sees the light of a camp ahead.
Blagh, a guard on the walls of Opar sees men coming across the valley. He tells Cadj, the High Priest, and keeping their plans secret from La, the crooked men wait in ambush.