From epubbooks.com:
Llano[sic] of Gathol is a collection of four novellas written in the Martian series of Edgar Rice Burroughs. Llano[sic], the daughter of Gahan of Gothol, is the perfect damsel in distress. The first story, The Ancient Dead (originally The City of Mummies) followed by The Black Pirates of Barsoom, Escape on Mars and finally Invisible Men of Mars. The four books in this series is truly comprised of parody and satire. These books are a good laugh with many futuristic encounters and wild characters.