It turned out to be a cute little thriller that climaxed in the last 50-60 pages, as most thrillers do.
The style is something that used to be called a boulevard novel, the characters are sketchy, including the protagonists.
What I didn't expect to find was the description of the famous Opera Garnier, its customs and inner workings. Thank god it was there. Otherwise this little paperback would've ended up in the waste-paper bin much sooner than it did, for I have finished the whole thing.
Next up, Graham Greene's A BURNT-OUT CASE.
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Addicted to content-free jazz music.