"You used a map to get to this inn yesterday, did you not? Because of that map, you are able to find our way up the road without getting lost. Likewise, in order for us as a species to walk the correct path in life, we need a very detailed map that will tell us what the world is like. Except our map in incomplete, almost entirely useless. Which is why, even now, in the twenty-first century, people are still making mistakes. War and the destruction of the environment and countless other things persist because the only map we have is woefully lacking. It's the mission of scientists to fill in those missing pieces."A Midsummer's Equation, by Keigo Higashino, is a perfectly delightful old-school mystery story. By which I mean, no hi-tech pyrotechnics, no weird sex, no ultra violence, no obscure specialists in esoteric fields of study you've never heard of. Just a suspicious death, some good old police work, and a fairly innocuous nest of family secrets.
That's a good thing.
It also makes the "Japanese Steig Larsson" proclamation stamped across the front cover silly, though I won't dispute that Higashino deserves to be better known. I loved The Devotion of Suspect X. A Midsummer's Equation is not as innovative a puzzle, but it confirms Higashino as a reliable writer to fall back on when I'm in the mood for a mystery.
Despite physicist Yukawas's insistence on the pursuit of pure truth and knowledge for its own sake, he seems very much concerned with moral truths. It is clear that for him the right path is the one leading to the greatest benefit for humanity. While logical, it may not be strictly legal. And that makes it quite different from many of the mysteries I've read in recent years in which legal justice tends to prevail.
This novel is not thriller. It's a tearjerker.