You hand her the let- wait what. You want.. a jar of... dirt??? why do you want that?? She looks confused, but then again so am i.
Oh uh. Sure?
She slithers inside for a moment, you hear sounds of clattering. You hear her talking with who you assume is mr worm, before she comes out with the jar on her head. She doesnt exacltly have hands to carry it with. She bows her head so you can take it off her. You do that, and then you head into the yard and fill it with dirt. I dont know what else to say here.

After a moment, you decide to give her the letter too. You walk back up and knock one more time before handing her the envelope.
Oh thank you for the envelope! But... how do i open it?
Uh, try bashing it against a rock
Good question. I have no idea