So who else is absolutely hooked?
I think I've worked out who the 456 are, the jigsaw pieces fit and it also fits the style of R.Davies, although he only wrote ep1 and 5 of this five parter apparently.
Was very surprised to not find a discussion on it over here, so mods please excuse me if there is one hidden away, and I thought the TPR forums were large with plenty of categories.
DT.