The key to the dungeon is hidden inside the chandelier in the living room, the room you enter on your way to the library. To break the chandelier, you will need:

- A cassette tape. (The cassette tape is found in the library beneath a secret panel by the telephone)
- A record. (The record is found in the Green Tentacle room)

1. Take these two items to the second floor, to the room with a piano and TV.
2. Once there, put the record on the victrola and the cassette into the tape recorder.
3. Turn on the recorder, and then the victrola.
4. Wait until the vase on the piano breaks before turning off the tape recorder.
5. Once the tape is made take it down to the living room and put it in tape deck of the old-fashioned radio.
6. Play the tape. The high frequency will shatter the windows and then the chandelier. And the key will fall onto the floor!