Warning - engineers at work

Back from my funereal travels. As an aside it is a real pity that the only time one seems to catch up with the various cousins is at such sad events.
Just before going, I was sorting out some books on my rickety bottle bookcases when the whole top five shelves collapsed. No damage other than to my pride but the generla commotion was heard by DS#2 and CC who resolved to replace the aforementioned rubbish shelves with some stable and indeed more elegant ones.
Much designing has gone on, calculations performed and, today,bit of wood started appearing on the walls. With a departure anticipated on Monday there is a fair way to go....