Right in the middle of the cemetery they were startled by a tap-tap-tapping noise coming from the misty shadows.
Trembling with fear, they found an old man with a hammer and chisel, chipping away at one of the headstones.
"Holy cow, Mister" one of them said after catching his breath "You scared us half to death - we thought you were a ghost! What are you doing working here so late at night?"
"Those fools!" the old man grumbled.
Spoiler:
