The book was first published in the United Kingdom on March 27, 2014, through Harper Voyager and in the United States on May 13, 2014, through Ecco Press.
Buku ini pertama kali diterbitkan di Inggris pada tanggal 27 Maret 2014, melalui Harper Voyager dan di Amerika Serikat pada 13 Mei 2014, melalui Ecco Press.