Does Bilbo's letter contain a clue to gaining access to the locked cellar? Lobelia seems to think it does....
NOTE: This quest will be removed from your quest log when the event it is associated with ends.
'Oh my, what wonderful news! Apparently my spoons fit as keys into the key-hole in that burrow door down there. That old madman planned for me to have his treasure after all!
'Come, I'll go open the door, and you will help me carry out the treasure I find. Let us meet down at the Party Tree. Just give me a moment, and I'll be down!'
Lobelia has made her way down to the Haunted Burrow to investigate, the door of which is at the Party Tree below Bag End.
You should join Lobelia in the Haunted Burrow.
Opal Goodbody is at the Party Tree in Hobbiton.
You should speak with Opal Goodbody to wrap your head around what just took place.