It wasn’t easy, but none can get past Great Detective Mordred! I was in a dead end, until you mentioned Hyde Park. Now, there are 4 letters in Hyde. You know what that means? There’s also four letters in “door”. When we woke up, usually all the doors are closed, but someone always leaves their door open. And that person, is you, Jekyll! Upon entering your room, we see this “Steam King” Humidifier made by Babbage, cranked on all the way to high! That’s what caused all the fog in our house and surrounding streets! What do you have to say about yourself?