Overview
My hunch was right. The fireplaces are interconnected through the mansion's Chimney; perhaps I can use them as an alternate way of navigating through the house. However, they're locked and Edmunds holds the only key. He will reluctantly give me the key if I collect 20 of each type of Gummy Slimes. There's Red, Green, Purple and Orange ones; so I'll need to hunt all over the house to get them. It'll be tempting to eat them first.