Beneath Wright Manor there is a large cavern complex. It was there that Wright conducted most of his experiments. When things went south, he destroyed the passage between his basement and the caverns. The other entrance, accessible from his ruined summerhouse, he sealed with an emblem as a key. The emblem he broke in half and buried.
The experiments involved Hugo Ashdown and the Playwright organization. It is likely that Hugo remains in the caverns, but has changed into an abomination. From the communication device that is installed in Wright's attic, piano tunes can still be heard.