The journey is the destination.
One hundred limited-edition collector's prizes were available to the first hundred people to find all 3 pieces of the Departure Easter Egg. Unfortunately, they have all been claimed. However, the hunt continues. You can still search for the pieces of the Departure Easter Egg and get your name (or alias) eternally etched upon the digital shrine below.
all 3 pieces
Any reader can join the hunt and win--no matter what edition of the book you read (or if you borrowed it from a library or friend). However, the HarperVoyager edition includes access to an epilogue with clues that will help you find the Easter egg.