Just as Rachel is about to shovel another armful of food down her massive maw, she spies something out of the corner of her eye.
It's a small sheet of paper, which she gingerly takes in her thick hand and reads:
"Dear Rachel,
You have our deepest thanks for voluntarily changing your species to our own! Know that your joining of the Zarbonuan race is one step, no matter how small, in the process of saving ourselves from extinction.
If you wish to help further, you may order another shipment of the serum. Simply consume this sheet, and have a container ready. Your body will produce the serum through your skin. When you are ready, speak the words 'Take me to Arctossian 5' and we will transport you and any other earthlings you have brought to our species to your new homeworld.
Thank you once again for your help! We look forward to meeting you in the future.
Sincerely,
The Zarbonu High Council"
"Wow," Rachel says. "I'm an alien now?"
She slumps in front of the refrigerator, pondering what she should do.