The Writing On the Wall
Cinder block stone became visible when Branik12 tore away the old plaster. Branik12 wasn’t as taken aback by anything other than the situation itself. Once he had removed a considerable amount of plaster, he could make out inscriptions on the stone.
It’s possible that the stone had instructions written on it by the builders themselves. Branik12, though, was not convinced, and so he pulled aside even more plaster to reveal something else.