I got a quick response from the seller:
Thanks for your inqiry.
This book is autographed on the 1st page by the author, and the inscription on the title page reads:
Looking back on this summer, I can see now that it is only you and a handful of people who I count as my close friends upon leaving K.P. Allow this, then, to serve as a token of my friendship, and as one more chance to say thank you for everything. As smarmy as it sounds, I can only hope we'll keep in touch after this wonderful summer at Kingsley Pines.