Tower of Zanid

L Sprague deCamp's SF novel paperback from Airmont Books 1963 (Reprint of Bouregy edition, 1958)

This is just a great cover. Dragon (obviously a thoroughbred, lookit those legs), spaceship (though it might be a tank), and guys with spears and bows and arrows! And one of the guys is green! "A Science-Fiction tale of star-rovers of the future." With spears.

Back cover:
"It is the Year 2168 -- and men have become star-rovers. The agreed-upon code is that sciences and gadgets beyond the cultural level of the peoples inhabiting the other planets will not be introduced by Earthnmen, or other visitors.
Such is the situation on the planet of Krishna, most Earthlike in physical attributes, climate, and inhabitants, when adventurer Anthony Fallon decides to take the risk of winning a kingdom. With enough money, perhaps he can raise a private army...
But there is only one risk that Anthony Fallon hesitates to take. Only under pain of death will he explore the mysteries of the dreaded TOWER OF ZANID!"

A tower. Why is it always a tower? And does Fallon have a slug-horn to raise to his lips? I suppose I'll have to read the darn thing before I sell it on ebay. Or not. deCamp is mildly amusing in short-novel form. I have much else to read. We'll see.