I did a Georgette Heyer novel about a decade ago, A Civil Contract, usually considered her most Austen-ish work; I have since wanted at some point to do her novel, An Infamous Army, which was one of her own favorites and which is sometimes regarded as the most historically accurate historical romance of all time. This seems as good a time as any. The book was published in 1937. It depicts British aristocracy vacationing in Brussels in 1815, around the time of Napoleon's return to power, and famously has an extremely well-researched depiction of the Battle of Waterloo that year. Her working title for it was Forgive, Brave Dead, a line from a poem by Sir Walter Scott, but the title on which she eventually decided, An Infamous Army, comes from a comment by the Duke of Wellington about the British troops under his command. The novel did OK, but was considerably less popular than many of her other historical romances, but time has been kind to it, particularly as we live in an era that is much more favorable to works with closely researched world-building of all kinds than the first half of the twentieth century was.