content: there was once a king and a queen in rousay who had three daughters . when the young princesses were just grown up , the king died , and the crown passed to a distant cousin , who had always hated him , and who paid no heed to the widowed queen and her daughters . so they were left very badly off , and they went to live in a tiny cottage , and did all the housework themselves . they had a kailyard in front of the cottage , and a little field behind it , and they had a cow that grazed in the field , and which they fed with the cabbages that grew in the kailyard . for everyone knows that to feed cows with cabbages makes them give a larger quantity of milk . but they soon discovered that some one was coming at night and stealing the cabbages , and , of course , this annoyed them very much . for they knew that if they had not cabbages to give to the cow , they would not have enough milk to sell . so the eldest princess said she would take out a three - legged stool , and wrap herself in a blanket , and sit in the kailyard all night to see if she could catch the thief . and , although it was very cold and very dark , she did so . at first it seemed as if all her trouble would be in vain , for hour after hour passed and nothing happened . but in the small hours of the morning , just as the clock was striking two , she heard a stealthy trampling in the field behind , as if some very heavy person were trying to tread very softly , and presently a mighty giant stepped right over the wall into the kailyard . he carried an enormous creel on his arm , and a large , sharp knife in his hand ; and he began to cut the cabbages , and to throw them into the creel as fast as he could . 
answer: catch the thief .
question: what will the eldest princess do after they discover someone is stealing their cabbages ?
target: what will the eldest princess do after they discover someone is stealing their cabbages ?
references: what will the eldest princess do after they discover someone is stealing their cabbages ?