Assault on Santa's Workshop (XD20)

From the back of the book: Your Christmas List to Santa Claus is all wrong! After a series of unfortunate circumstances, you discover that somehow Santa has received the wrong letter in your name. Now you must break into the most secret and carefully guarded fortress in the world, substitute your true Christmas letter and escape without getting yourself put on the ‘Naughty List.’ It is a quest that will require all your cunning, deception, ingenuity and sheer determination