The Great Puffle Switch

This book which was announced on October 25, 2009 (comes out on March 4, 2010), is about an accident which causes you and and your puffle to switch places.

Trivia

 * This is Pick Your Path book number #4.


 * This is related to Freaky Friday.


 * The codes can be unlocked online already. However, it is hard to guess them because the book is not out yet.

Source
http://www.clubpenguintoys.com/club-penguin-books/disney-club-penguin-the-great-puffle-switch/