This Is How You Lose the Time War by Amal El-Mohtar and Max Gladstone is an epistolary novel, with opposing time-traveling rival agents attempting to win a war. Also, they gradually fall in love.
The fun of this book, for me, was in my appreciation of the prose style, and in piecing together the scraps of worldbuilding to differentiate the two sides and the two agents, Red and Blue. the book is also a commentary on correspondence, particularly the type of correspondence that is timely (heh) and fleeting. The authors play with this idea, using some direct references to the sort of formal physical letters with wax seals that most people don’t bother with any more, here on twenty-first century Earth. In comparison, Red and Blue write to each other in ways that are fleeting but phantasmagorical.
I don’t want to spoil the details; this is an original, memorable book that I recommend.
a commentary on correspondence, particularly the type of correspondence that is timely (heh) and fleeting.
Oooh, I love this idea! I really need to get to this book.
I hope you like it! It’s not long, but it’s a gem.