Also, The Star Plunderer
Staggering under the blasting heat of a great ringed sun, she fought only to cross her savage slimy world. the lithe Priestess Yida knew not that her goal lay, bright and shining, a thousand light-years away.
Also Citadel of the Green Death
Grimly Eric John Stark slogged toward that ancient Martian city — with every step he cursed the talisman of Ban Cruach that flamed in his blood-stained belt. Behind him screamed the hordes of Ciaran, hungering for that magic jewel — ahead lay the dread abode of the Ice Creatures — at his side stalked the whispering spectre of Ban Cruach, urging him on to a battle Stark knew he must lose!
Snatched From Space And Time To Serve A Crystal Flame!
Notice the guy in the back throwing an axe.
The Ffanx had abducted Earth’s womankind. A few escaped — to become beautiful, trampling, man-stealing monsters
That sounds more like succubi to me.