To get to Raventhorpe you need Jangle to help you. Simply click on Jangle to visit Raventhorpe...

Jangle is a key that Isabella finds at the bottom of the dressing up trunk in Raventhorpe and he leads her to The Hotel Gastronomic. He is able to change shape so that he can fit any lock. He can also be a somewhat pedantic character, though his heart is in the right place.