On 31 July, Pottermore released the first clue at 9 a.m. BST: "How many owls are on the Eeylops Owl Emporium sign? Multiply by 49". The answer could be found in the first book, in the chapter titled "Diagon Alley."[18] The correct answer was 245, as there were 5 breeds of owl.[18] Users were then taken to Sony's US homepage in which you had to click on the Magical Quill floating among other Quills. Registration for the first day closed two hours after the post.

On 1 August, Pottermore released a second clue at 10 a.m. BST: "What is the number of the chapter in which Professor McGonagall cancels the Quidditch match between Gryffindor and Hufflepuff? Multiply this number by 42." The answer was chapter 14, titled "Cornelius Fudge", making the correct answer 588.[19] Users were taken to the Harry Potter and the Deathly Hallows – Part 2 site, where a quill was hidden in the images. Registration for the second day closed 77 minutes after the post.

On 2 August, Pottermore released the third clue at 11:00 a.m. BST: "In the Gryffindor versus Slytherin Quidditch match, in Harry's third year, how many points is Gryffindor leading by before Harry catches the Golden Snitch? Multiply this number by 35." Gryffindor was leading by 60 points before Harry caught the Snitch (Gryffindor 80, Slytherin 20), making the answer 2100.[20] Users were directed to an online article on The Guardian's website where the Quill was in an ad space. The Quill had to be levitated in order to be able to register. The Quill was levitated by moving the cursor back and forth just under the Quill. Registration on the third day closed 57 minutes after the post.

On 3 August, Pottermore released the fourth clue at 3:30 p.m. BST: "How many students take part in the Triwizard Tournament during Harry's fourth year? Multiply this number by 28." Four contestants competed in the Triwizard Tournament, which multiplied by 28, equals 112. Initially, some users were directed a Sony Harry Potter page; however, upon re-entering the address, they were sent to the registration page, where one could begin creating their account. Registration on the fourth day closed 33 minutes after the post.[citation needed]

On 4 August, Pottermore released the fifth clue at 6:00 p.m. BST: "What is the house number of the Headquarters for The Order of the Phoenix in Grimmauld Place? Multiply this number by 21." The house number was 12, making the answer 252. Users were redirected to Scholastic's Harry Potter page, where users had to capture the quill in an ad space. Registration on the fifth day closed 56 minutes after the post.[citation needed]

On 5 August, Pottermore released the sixth clue at 2:00 p.m. BST: "How many chapters are there in Harry Potter and the Half-Blood Prince? Multiply this number by 14." The number of chapters was 30, making the answer 420. Users were redirected to The Wizarding World of Harry Potter's official page, where users had to click on the quill on the map. Registration on the sixth day closed approximately 110 minutes after the post.

On 6 August, Pottermore released the seventh and final clue at 1:00 a.m. BST: "How many Deathly Hallows are there? Multiply this number by 7." The number of Hallows was 3, making the answer 21. Users were redirected to Warner Brothers' Parseltongue Translator, where users had to select the quill in ad space. Because of the early timing of this clue, the clue was released on Friday to users in the western hemisphere. After the limit of user registrations was met (about 3:00 a.m. BST), early registration to Pottermore was closed. On August 7th, new users may register for Pottermore, but will not gain full access until the official website launch date in October.[21][22]