There are sometimes papers you just cannot put down only because they are so well crafted, even though your are not really interested in their topic. I just read one of those, by François Velde.
The French government is still honoring an annuity dating back from 1738, yielding annually €1.20 to be distributed to 58 people. That seems to be a very inconsequential amount, but this particular debt, which survived several kings and political regimes, just does not die. I do not want to reveal too much about the story here, as Velde does a remarkable job at trying to understand where this annuity comes from, how it survived various challenges and how its current amount was established. Along the way, we learn a lot about politics and economics through almost three centuries of French history. A true page turner.