"Apart from that, Yemon also has a secret pocket. I often tuck letters to Mommy in it. Mommy will secretly reply," Emily continued in a half-whisper.

Suddenly, Frank blinked. He had just remembered about the secret mission he had to carry out immediately.

"Emily, where is your brother's room? Your parents will be worried if you don't come back soon."

Just when Emily was about to answer, a small voice came from the side. "You!"

Frank looked over. A toddler boy with his hand wrapped in a cast was ...