Miss Darby's Duenna

Miss Darby's Duenna (Sheri Cobb South, 1999) is an old-school traditional Regency romance of the light comedic romp tradition, and it's delightfully well-written, even if the hero's disguise as an old lady made about as much sense as no one noticing Superman looks just like Clark Kent without glasses, and even though the villain turned into the hero of a secondary romance plot awfully quickly. In other words, a good, relaxing read, but more about the fun than the realism.