I read a novel during my childhood which is a science fiction novel. Villain uses a lot of complicated weapons. He has a plane which can fly without being noticed. It doesn't make any noise and while in sky it cant be seen. In between hero get hold of one of those plane. Villain lives in fortress or something inside a jungle.
The novel has more than two parts. I read almost all parts, but was unable to read final parts. I read them 15 years ago. I would like to read them all again. Any help will be deeply appreciated.
Note: I read the translated version of novel. I don't remember who wrote it in which language originally.
Thanks for your time