points of concern

Exploration Stage: Heirs' Villa
From: Robert Luxmore
Description: Tillie told me that it was very important to go to one special place. And that the door to that place was in this house. She even gave me a map showing the location of the door. Where did I put the map?
Completed: So there was a map! See, the cross marks indicate the door Tilly wanted to go through. I thought it was a riddle game we often play at parties then.