Have you imagined flying? Well this book is about Be Be and Cassie. They were flying and there was a train. Be Be went in the train. Cassie said that mom and dad will be mad at me. You're not suppose to! then the secret agent said to go to the swirly thing in the sky and there will be a world of slaves. Your brother will be there. Then the secret agent said to follow her voice. Cassie found Be Be's cap and squeezed out the mud. The secret agent said to leave it alone. Finally, Cassie found Be Be. I recommend the book for people who like to imagine flying on the swings or something.