An Unfortunate Incident

Alighting from the Tube this morning (only public transport offers one the opportunity of  'alighting from' anything, so we should make the most of it), I realised with a sickening jolt that I was not carrying one of the bags I'd set out with. Not any old bag but the one that masquerades as a serious executive-style briefcase, though it in fact contains chiefly CDs and a Discman to play them on, a range of travel necessities (including bottle opener) and miscellaneous documents, notably - the only irreplaceable items, I think - two or three small notebooks that I've been using as commonplace books, noting down passages that catch my eye, for several years.
It had been an unusually complicated journey in, and, looking back over it, it seemed likeliest that I'd left the bag at a cafe where I'd had a quick espresso en route. As said cafe clearly had no intention of ever answering the phone, however often I rang, I took the Tube back after a while and, as they say, applied in person. No joy, the bag had not been left there. This narrows it down to railway Lost Property, and I can't say I'm too hopeful. Meanwhile, I swing between feeling strangely disoriented, as if I'd temporarily mislaid part of my body, and feeling resigned to the loss. I'll  miss those notebooks, but most of the rest can be replaced.
Or, of course, the bag might have been handed in  at Lost Property by some upright citizen. We'll see.