Thun'da, King of the Congo #5

Three escaped convicts fleeing through the Congo jungle kill animals for sport and hunt a mysterious treasure, prompting Thun'da to pursue them. Edwards, one of the convicts, plans to use a woman as a hostage to force Thun'da to reveal the location of the hidden treasure of Lobengula, but Thun'da pursues the criminals through the jungle to stop them.