10 Facts that Contradict the Pyramid Tomb Theory - Scott Creighton

Having discovered the upper passage system (if by no other means then certainly via
the clues left behind by the builders), the task for the intruders would then be to work
around the granite blocks that blocked this passage (assuming, of course, that they had
not discovered the secret exit used by the builders). Though difficult, this would not
have been an insurmountable problem for a people who could quarry granite blocks of
anywhere between 5 and 70 tons and manoeuvre them into place to construct a
pyramid. If they could do that then it is not unreasonable to suggest that they could
just as easily do the reverse.
Once entry into the Grand Gallery had been achieved then the only ‘security measure’
protecting the King’s Chamber was three portcullis blocks made of granite set in
place within the Ante Chamber before the King’s Chamber. But once again, as if to
go out of their way to assist any intruder, these slabs would have presented little
resistance since the builders—rather conveniently—had left in place a fourth granite
block known as the ‘Granite Leaf’. This stone could easily have been utilised as a
counter-weight to raise each of the three portcullis blocking stones, allowing easy
access to the King’s Chamber.