The " Captain's Quarters " Key!

Although the Migrator had left. The " Captain's Quarters " key can still be found. Here's how you can get it:

Step 1: Go to the Book Room.

Step 2: Click on the book shelf.

Step 3: Open the " The Journal of Captain Rockhopper ".

Step 4: Flip it till the last page.

Step 5: Now take the key.