They had a lot riding on this.
When Mzanka deigned to accept their allegiance again, the priest would be secure. This menacing from the chief would evaporate. Praised for the one who had worked up the seed-slave’s suffering. Mzanka had heard him calling out. The priest would have given the chief the way back.
Much depended on this success. The chief’s name would be sung around campfires for years to come. The chief who had won the tribe back into Mzanka’s favours. The chief who had gratified Mzanka with the perfect body-slave .. to serve Mzanka’s every desire and whim. King of the jungle. A gift that had won Mzanka’s favours forever-and-a-day.
Men with a lot to lose. Tarzan had a lot riding on this. His freedom. Escape from their scheming and a tortured captivity. Restored to his muscular strength, free of their agonising torments. Remain master of his sanity.