Prompt: "on the avenue"
Here's "avenue" from the online etymological dictionary, in case that helps:
c.1600, "a way of approach" (originally a military word), from Middle French avenue "way of access," from Old French avenue "act of approaching, arrival," noun use of fem. of avenu, past participle of avenir "to come to, arrive," from Latin advenire "to come to," from ad- "to" (see ad-) + venire "to come" (see venue). Meaning shifted to "a way of approach to a country-house," usually bordered by trees, hence, "a broad, tree-lined roadway" (1650s), then to "wide, main street" (by 1846, especially in U.S.).
So far the strongest idea I had was another variation of Arthur's return... but, I also briefly thought of Sherlock's future house in Sussex... and then there's always more original fic I could write.
Or I could pull from yalumesse's prompt list at random... and using a random number generator, I get #13:
13. is about a minor character from the POV of a major character
But, I have no ideas for that either... blah... maybe I just need a day off?