No, the unexpected parcel was the one with
If in doubt, open it.
The parcel was actually on behalf of Jane and Scott Dennis, owners of Fo'paws, from whom I'd ordered 3 Nippon 3007 polo shirts back at Eastercon. Because of shipping costs from the US, we'd agreed that the shirts needn't be posted from Kentucky, and their next visit over here in June was soon enough.
So, Marcia, received. Thank you.