Just have a look at the green vase!
If you ever get lost when visiting this house, simply look for the enormous lime-green vase in the entryway and you’ll be OK. The vase is the tell-tale sign that there is a room hidden behind the stone wall, because you wouldn’t guess there was anything unusual there otherwise!
Behind that concealed opening appears to be a large bar, making it the ideal place to pass away the hours until someone notices you.