The explorer Smith leaves with Laura, a beautiful but naive girl, in search of Professor Berti, who mysteriously disappeared in Africa in the midst...
A captain, a well-known flying ace, is developing his own device which will make a notable contribution to the prestige of his country's air force....
Free Unlimited Access, Search for anything No Ads, Millions of titles and added every day, All platforms and Fully Optimized, Anywhere and anytime
