What does this ghost want?


Hint 1 of 5:
You have surely been to the underworld by now, haven't you?

Hint 2 of 5:
Then you probably saw a mother who'd lost her son.

Hint 3 of 5:
What do you think the chances are that this is her son?

Hint 4 of 5:
Pretty good.  The ghost mother wanted you to give her son something.

Hint 5 of 5:
She should have given you a handerchief.