How do I open door number 219?

1. Read the cryptic note you found in Abbott's safe. What could it refer to?

2. What comes in a pack of 52?

3. You can always ask someone if you're stuck.

4. Ask Vanessa about the note.

5. You need a deck of cards. Fortunately there's someone on board who's got one.

6. Get the deck of cards before you continue.

7. Did you get it?

8. Did you take a really good look at it?

9. By this time, the bartender will have procured Barnet's key. Talk to him, and he'll give it to you.

10. Use the key on door 219.