To read some great historical “fiction” about the Battle of Waterloo read Bernard Cornwell’s book “Waterloo: The History of Four Days, Three Armies, and Three Battles.” Also worth reading if you’re interested in the Royal Navy aspects of Napoleon’s 100 days campaign, read “The Hundred Days” by Patrick O’Brian.
Two great books by two of my favorite authors. Cornwell also treated Waterloo very well in his Sharpe series, “Sharpe’s Waterloo”.
I thought “The Hundred Days” was probably the worst of the Aubrey/Maturin books. It was all based on the idea that there would be a mideast uprising in 1815 based on Bonaparte’s fake conversion to Islam in 1798. The muzzies weren’t fooled in 1798 and they certainly would not have believed it in 1815. Obviously, O’Brian had run out of plots by then.