'Murder of a Lady' by Anthony Wynne is set deep in the Scottish highlands (well on the shores of Loch Fyne, which is Highland enough for me) and is a tremendous locked for mystery. Mary Gregor is found dead in her room, the only clue a fish scale. At first there's shock, she's the lairds sister and a considerable personality in local circles, but as we slowly learn more about her the idea that someone wanted her dead becomes easier to understand. Meanwhile the body count keeps tiding, with the same Gish scale clues - the natives start muttering about a mythical sea beast - the actual explanation is almost as far fetched, and also wonderful.
I have a soft spot for books like this. There's a tongue in cheek feel about the whole thing, almost as if Wynne is daring the reader to pull him up on his plotting, but I want to see what he can get away with almost as much as I think he does.
Being a Scottish mystery this might have been an opportunity to look for something whisky based, but I think Duchlan Castle is the sort of late Victorian monstrosity that would have prided itself on its hospitality, and ruled as it was by Mary Gregor, I feel sure there would have been some sort of Wine Cup which would have made an appearance at any large gathering.
Apart from Pimm's and cheap Pimm's knock offs alcoholic cups seem to have rather fallen from favour (they have found here anyway). Sipsmiths do a very good 'London Cup' which I really struggle to sell, and there are one or two others on the market, mostly gin based, but they're not something customers talk about or I come across nearly enough. Which is a shame.
For parties of any sort a Wine Cup is an excellent idea scaled up or down according to need - basically if you'd make a jug of Pimm's you could make this instead, and any left over will keep perfectly well for the next day. There are dozens of variations on the theme, and plenty of room for improvisation at home, but I really like the sound of this one from Arabella Boxer's 'Book of English Food', she found it in Rosemary Hume's 'Party Food and Drink'.
2 Bottles of dry white wine, 450ml soda water, 1 smallish glassful of brandy, 1 smallish wine glassful of elderflower syrup or cordial, a sliced lemon, strawberries, cucumber rind, borage (if you grow it) and ice. Mix all together a couple of hours before serving.