The Scarlet Pimpernel, by Baroness Emma Orczy

I have to start by saying that that is a really unfortunate choice of flower name for one's secret identity, because at least in my experience the scarlet pimpernel is not a well-known flower name these days, and the only real association with the syllable "pimp" is, well, pimps. And "scarlet" doesn't really help with the pimp association. So the name sounds kiiiiind of sketchy instead of sounding like an innocent wayside flower.

ANYWAYS.

( cut for spoilers )