"Rule number one, Mister Finnigan," said Harry in an even tone, "always keep the guv'ner waiting."
The son of Seamus had the sense to blush. And together, they apparated to the Ministry of Magic, where a crowd of Aurors and Unspeakables crowded together, quietly discussing the damages inflicted on the entirety of the atrium. Harry's young partner, one Benjamin Creevey, peeled away from the group and approached the raven-haired man.
"Somebody had a go at the Atrium, sir." said Benjamin, gesturing to the room.
Again, in that even tone, Harry said, "Rule number two, Mister Finnigan; always treat the boss as if he were blind and stupid."
Story involving a middle-aged Harry Potter, senior Hit-Wizard and Investigative Auror. Weary in life, watching the children of old friends all grown up and taking their places in society. The loss of his wife and with his only child all grown up and finding their own place on their own terms, and a mystery brewing around town, what's he going to do when Fleur Delacour shows up, recovering from her own losses, and without her own children to comfort her?