Where can I get a third key card?

1. Ask Deirdre. She might give you one if you're nice.

2. Or not. She's all out. Have you been to your room lately? There might be one somewhere in the mess.

3. Go to your room to find an invitation on your pillow instead.

4. Visit Vanessa first, then come back here.

5. Have you solved the drinks problem?

6. Now that Vanessa is docile you can explore the room freely.

7. Turn on the lamp to reveal a key card taped inside.