Tarzan and the Forbidden City

Edgar Rice Burroughs, man of mystery, who created fiction to reveal his passion for the truth about lost civilizations, Atlantis, hollow earth, and more. Though most may not consider Tarzan stories as science fiction, this one truly is, since Burroughs plants the seeds of forgotten civilizations in the context of his novel.

Excerpt:

"Here, O Herat, is the sacred casket with The Father of Diamonds. Had it not been for the man, Tarzan, it would never have been recovered. I know that he and his friends are in grave peril, for they are close to Ashair. Will you not send galleys and warriors to rescue them?"

"With this," cried Herat, touching the casket, "our forces cannot lose, for we shall again have the god upon our side." He turned to one of his aides. "Let all the war galleys be prepared and manned. We shall attack Ashair at once; and at last the followers of the true god, Chon, shall prevail; and the traitors and the wicked shall be destroyed. All that is lacking to our complete triumph is the presence in the flesh of the holy Chon."

"He will be with us in spirit," Herkuf reminded him. So King Herat put out from Thobos with many war galleys, to avenge the wrong that Atka had done his god and to succor the strangers who had been instrumental in recovering the true Father of Diamonds from the bottom of Holy Horus; and Queen Mentheb and her ladies waved to them from the quay and wished them godspeed.

The true god, Chon, and his priests were gathered in the cavern temple on the shore of Horus. The three prisoners stood below the altar before the throne. At a word from Chon, several priests seized Gregory, stripped his clothing from him, and threw him to his back across the altar. Chon rose from his throne and stood above him.

"From the entrails of this man let the oracle speak!"