Just Reward / The High Crusade By Poul Anderson

Poul Anderson’s 1960 The High Crusade is a stand-alone science fiction novel from the days when novels were about as long as novellas are now. 1345 : Sir Roger de Toumeville’s efforts to assemble an army of free companions to do their bit in the Hundred Years War are suddenly interrupted when quite unexpectedly, aliens descend on the small Lincolnshire town of Ansby. In a battle between…