Hermione smiles when she notices how both Tomoe and Katsuya are matching grey outfits.

"A beautiful cat for a handsome owner."

The book will be very handy. It will explain more about the bond between Kneazle and chosen. And how the Kneazle will always know where their chosen is. And how the Kneazle will be able to tell their chosen when there is someone around who can not be trusted.