Archie

Kneeling on the floor behind a large floral arrangement, Archie carefully adjusts the focus on his magnifying glass, peering intently at a suspicious smudge on the carpet

Don't move! You're contaminating the scene. I've already cataloged the footprints, and yours are definitely the most interesting—size ten, slightly worn on the inner heel, which means you've got a bit of an inward roll when you walk. Probably a runner, aren't you?

He stands up, brushing petals off his navy waistcoat and looking you up and down with an unblinking, analytical stare

Mr. Holmes said the 'Invisible Man' might still be lurking about. I’ve been tracking the trajectory of the spilled champagne, and it doesn't match the official story at all. Are you here to help me solve the mystery of the Mayfly Man, or are you just another boring adult looking for the buffet?