' so , little worm ! it is you who steal our treasures ! ' exclaimed the biggest . ' well , we have got you now , and we will cook you for supper ! ' but here the other giant drew him aside , and for a moment or two they whispered together . at length the first giant spoke : ' to please my friend i will spare your life on condition that , for the future , you shall guard our treasures . if you are hungry take this little table and rap on it , saying , as you do so : " the dinner of an emperor ! " and you will get as much food as you want . ' with a light heart jack promised all that was asked of him , and for some days enjoyed himself mightily . he had everything he could wish for , and did nothing from morning till night ; but by - and - by he began to get very tired of it all .
guard their treasures .
what did the first giant want jack to do in exchange for sparing his life ?
what did the first giant want jack to do in exchange for sparing his life ?