The Silver Hands by Katie Jones
...When the miller returned, his wife asked, ‘Miller, from whence comes this sudden wealth into our house?’ He answered, ‘I met a stranger in the forest who promised me great treasure. I, in return, have promised him what stands behind the mill – we can happily give him our apple-tree for it.’
‘He must be the devil!’ said the terrified wife, ‘he did not mean the apple-tree, but our daughter, who was sweeping behind the mill’.