> Anyway, im trying to figure out where the guy got out of the
> chamber when he was done, that triangular block behind Schoch's
> head does not seem to line up with its opposite block, was that
> the plasterer's escape hole ?
> I cant imagine them leaving a complete ceiling block open for
> his escape route, as how would they know that last beam didn't
> badly crack when they finally lowered it.
> Also while im here, you can see the apex joint is open, and a
> couple of the white drip marks are in line with the apex
> opening, did something drip through from above, and do we know
> if there is another set of beams overlaying the first set, like
> the double set of the original opening of G1,
In the attached photo by Dowell, notice the upper, recessed triangular part of the wall with "2nd Gen. Hosp." on it, not the lower, closer block. That is one of the two Great Walls described by Petrie and are not part of the integral structure of the Relieving Chambers. While the builders were constructing the RCs, consider that the surrounding upper courses of G1 had not yet been constructed. Therefore, once the roof beams were completed on Campbell's chamber, there was plenty of open room to escape, since those east and west Great Wall blocks had not yet been installed. Petrie and everyone else commented on the little sockets in the tops of some of the floor beams and which were proposed to hold temporary beams that supported the roof blocks during the construction process. Therefore, once everything was completed in the RCs but BEFORE the Great Wall blocks were installed to seal everything in, there was plenty of room to remove those temporary support beams and any workers before dealing up the assembly by building up those courses on the Great Walls. See?
How can any of us ever know, when all we can do is think?