Through the plan hidden in Astarte's jewelry, Maud Gregaards, Kien-Lung and Consul Madsen get on the trail of the Queen of Sheba's treasure. Their search takes them to Africa, where they want to know from King Makombe the location of the Fire Mountain, near which the legendary city of Ophir, the center of the Astarte cult, is said to be.
| Actor | Role |
|---|---|
 Mia MayMaud Gregaards | Maud Gregaards |
| MMichael BohnenConsul Madsen | Consul Madsen |
| HHenry SzeDr. Kien-Lung | Dr. Kien-Lung |
| BBamboulaKing Makombe | King Makombe |
 Louis BrodyMallkalle | Mallkalle |
 Bruno DecarliNot listed | Not listed |
 Ernst HofmannCreed Merville | Creed Merville |
 Victor JansonBullbox | Bullbox |
 Hans MierendorffBaron Murphy/Dr. Frohner | Baron Murphy/Dr. Frohner |
 Paul MorganPius Gotthilf Karpeler | Pius Gotthilf Karpeler |