This beautifully illustrated book is a brand-new interactive story, based on the beloved characters of Tove Jansson and the classic world of Moominvalley. A delight for Moomin fans, it's sure to be cherished for many years.

“Dear Moomin, … here's a letter for you!” Moomin's best friend, Snufkin, has left a special surprise for Moomin in the mailbox—a treasure hunt! Follow Moomin as he explores Moominvalley and finds all the clues Snufkin has left, leading to an exciting surprise.

Open the envelopes inside this book and discover letters from all your favorite Moomin characters, including postcards from Moomin, a little book from Little My, a pancake recipe from Moominmamma—and much more!