"Thomas?"
"Yes, Dear?"
"I've discovered how you came to be."
"Interesting. Figured it out on your own, did you?"
"There were clues. You're a Slate, aren't you?"
"A Slate. That's true. What gave me away?"
"I've found gray feathers after your visit."
"I need to take better care of my wings."
"Thomas?"
"Yes, Dear?"
"I've written a book that includes your secret. I'm going to publish it."
"When?"
"Soon."