Before Rowling's identity as the book's author was revealed, 1,500 copies of the printed book had been sold since its release in April 2013, plus another 7,000 copies of the ebook, audiobook, and library editions.
Sebelum identitas Rowling sebagai penulis novel ini terungkap, 1.500 eksemplar novel telah berhasil terjual sejak perilisannya pada bulan April 2013, ditambah dengan 7.000 edisi buku elektronik, buku audio, dan buku perpustakaan.