Volumes 2-4 of Edogawa Ranpo's "Shounen Tantei" series. After reading the first volume, I was wondering if there was any continuity in the subsequent volumes. Turns out there are some recurring characters, but I suspect I would not have missed much if I just skipped forward.
Besides recurring characters, there is some bit of recurring plot devices as well. For people who like disguises, treasure hunting, great thieves, and could not get enough of these from the first volume, these subsequent volumes follow the same successful formula.
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