content: the old man thanked him very humbly : " i did not expect such kindness from your lordship . i fear i have only disturbed your pleasant party by my unskillful dancing . " " no , no , " answered the big demon . " you must come often and dance for us . your skill has given us much pleasure . " the old man thanked him again and promised to do so . " then will you come again to - morrow , old man ? " asked the demon . " certainly , i will , " answered the old man . " then you must leave some pledge of your word with us , " said the demon . " whatever you like , " said the old man . " now what is the best thing he can leave with us as a pledge ? " asked the demon , looking round .
answer: come often and dance for them .
question: what did the old man promise ?
target: what did the old man promise ?
references: what did the old man promise ?