The High Crusade (1960) is a standalone SF novel. The Wersgorix were supreme in their spatial region. The other spacefaring races -- the Jairs, the Ashenkoghi and the Pr?*tans -- were weaker and allowed to retain their planets only upon Wersgorixan sufferance. Yes, the Wersgorix were supreme ... until a scoutship landed in England.
In this novel, Baron Sir Roger de Tourneville is preparing for the war against the French in the year of grace 1345. He has gathered a large force of cavalry, men of arms and bowmen, who are camped outside his castle. Then a large shiny object falls slowly out of the sky.
The ship is two thousand feet long. Lowering itself onto the boggy soil, it sinks deep into the mud. A hatch opens and a ramp lowers to the ground. A short but brawny creature, with blue skin and a short tail, steps out of the ship and three more follow him. The first creature lifts an object that projects fire, instantly killing one of the soldiers. This blue creature is immediately downed by a clothyard arrow and soon after that the other three bristle with arrows.
Sir Roger leads a charge into the huge vessel and the blueskins are slaughtered throughout the ship, at the cost of a dozen human soldiers. The blueskins seem to be little practiced in hand-to-hand combat and many are not even armed. The only survivor is carried out by Red John Hameward, Captain of the archers, who has recognized the need for an informant.
Brother Parvus teaches the captive, Branithar, the Latin language and is able to learn something of the ship and its mission. The Wergorix were following their usual practice to searching out suitable planets and subjugating the inhabitants. Unfortunately for them, the humans are not strangers to warfare and not too fearful of the unknown.
Sir Roger soon conceives of using the ship as transport to France, thus taking the whole of Ansby village with him. The men, women and children -- including Sir Roger's own family -- load their herds and tools into the ship and then board themselves. Branithar sets the controls and presses a lever to start the journey.
Unfortunately, Branithar has set the controls to take them back to Tharixan, the nearest Wersgorixan world. Once activated, the automaton cannot be stopped nor reset. Ansby village is going to the stars instead of France.
In this story, the primitively armed English defeat Wersgorixan forces time and again, using raw courage and tactics unfamiliar to the aliens. Sir Roger gains stocks of alien weapons and uses them on their former owners. He even convinces the other spacefaring races in the region to become his allies; it seems that these aliens have little experience in the fine art of diplomacy and intrigue.
With the occasional threat of One-eye Hubert -- the Tourneville executioner and torturer -- Brother Parvus gets Branithar to teach the English how to use the alien devices and weapons. While the underlying principles are incomprehensible, the devices themselves are easier to use than the more familiar earthly devices. Soon, women and children are operating these mechanisms while their menfolk are away fighting the war.
This story is a classic examples of the SF theme of technologically unsophisticated natives acquiring advanced devices -- including spaceships -- from visiting aliens. Weber's The Excalibur Alternative is very similar example of this approach and Ringo's Posleen War series has this theme in the backstory. A variant of the theme is used in Pournelle's Janissaries series and Drake's Ranks of Bronze, where aliens kidnap a group of Terrans and use them as slave troops on other planets.
In this tale, and in The Excalibur Alternative, the installation of a feudal form of government is a significant result of the conquest. The mutual vows of a feudal lord and his vassals are often presented in SF tales as a desirable alternative to looser forms of government such as democracy. Many SF stories (and countless fantasies) have dwelt upon the surety such mutual vows bring to social and personal relationships.
This story was written in the first decade of the author's career as an SF writer. It has become a classic in the field and has generated many imitations and stimulations. Enjoy!
Highly recommended for Anderson fans and for anyone else who enjoys tales of swordwielding adventure, political intrigue and romantic misunderstandings.
-Arthur W. Jordin