Outside the walls of the starport Novorecife, Earthmen on the warrior
planet Kishna are on their own. So when he is chosen to lead the first
ersuma (Earth-tourists) through the sorcerer-kingdoms of this
"protected" medieval world, Fergus Reith must first learn to speak
Durou; must take the chemical oath against imparting technical
information; and must above all else learn to handle a broadsword!
All these skills are needed when Reith finds himself and his ersuma
trapped as pawns in a deadly war between a sorceress and a sterile
kingdom under three moons ... The Hostage of Zir is the third of L.
Sprague de Camp's Krishna book--interplanetary romance in the tradition
of Edgar Rice Burroughs' Martian Tales.