content: preoccupied with this and other thoughts , he forgot while returning to his kiln , that he had promised the strange woman at the very beginning , when she had first helped him , that , whenever he had been home and was returning to the kiln , he would rap three times with his ax against an old pine - tree not far from it . on this occasion , as we have said , he forgot the sign , and as a result he saw something that nearly robbed him of his wits .
answer: he saw something that nearly robbed him of his wits .
question: what happened because charcoal nils forgot to the sign ?
target: what happened because charcoal nils forgot to the sign ?
references: what happened because charcoal nils forgot to the sign ?