Chandu consults his crystal ball and sees that Nadji, Princess of Egypt, is in danger. She is about to be sacrificed by the black magic cult of Ubasti. Headed for the magic island of Lemuria, he is shipwrecked , washed ashore and captured. He becomes invisible, escapes and after numerous detours is able to rescue the princess.
Frank Chandler (Chandu)
Nadji - Princess of Egypt
The Supreme Voice of Ubasti [Chs. 4-12]
Dorothy Regent
Bob Regent (as Deane Benton)
Betty Regent
Vindhyan, High Priest [Chs. 1-4]
Henchman Sutra [Chs.1-4]
Capt. Wilson [Chs. 4-12]
Tyba, The White Magician [Chs. 8-12]
Judy Allen
Morta
Cat Man
Sisaba
Mr. James
Mrs. James
Prince Andra
Vitras