The Masque of the Black Tulip - Lauren Willig The historical parts of these books are so much fun. This one in particular had some great funny/silly/witty dialogue. I'm a fan of the "brother's best friend" trope because it believably creates conflict with the hero and heroine getting together without having them snipe at each other all the time. Miles and Henrietta are an appealing couple of ordinary people caught in extraordinary circumstances, while slowly coming to the realization that despite having known each other for practically their whole lives their feelings towards each other are changing. I find the modern day sections less appealing but they are a minor part of the book compared to the historical.