327L: Sort of like the Boxcar Children but in ancient Rome (or was it Greece?) (Solved!)

I read it in the 1970s, probably published then or perhaps in the late '60s. A young boy (maybe 10 or 11) and his older sister (young teenager?) from a noble family become embroiled in a mystery and they run around town (possibly Athens, but I think it was ancient Rome) hunting for clues.  They wear togas. 🙂

11 thoughts on “327L: Sort of like the Boxcar Children but in ancient Rome (or was it Greece?) (Solved!)

  1. Definitely intended for an older audience than grades 2 – 6. I would say it was at a middle-school or even YA level.

    • Yes, the Gift of the Golden Cup might very well be it! I can’t be sure since it seems to be out of print, but this is a very promising lead. Thank you very much!

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