Then there was a splintering noise and a part of the wood broke away.
Plack! Plack! Plack! screamed the mallet again.
The wood grunted again, but it was of no use, and another piece broke away.
And then the man hit the chisel again and another piece broke off, and the chisel came through on the other side of the beam.
And the carpenter drove the chisel through at the other side of the hole, in the same way; and what had been a round hole was a square one.
Then he laid the mallet down and took the chisel in both hands, and he leaned over the square hole and made the sides all smooth with the chisel.
Then he made a sort of sloping hole, a kind of a little square trench, and it went from the side of the beam into the square hole.
Then he put his tools down and looked at the little boy again and smiled.
"There!" he said. "That's done."
The little boy smiled back at him.