We have some theory on when the next timing might be
Seeing how short Day 4 registration closes [43mins]
We want to be fast and be prepared
Not sure about the timezone in your own country ? no worries, I have a page over here that list the time
Day 5 Timing
Clues so far:
1) Number of owl breeds in Eeylops Owl sign multiplied by 49
2) Chapter number in which McGonagall cancels the Quidditch match between Gryffindor and Hufflepuff multiplied by 42
3) Number of points Gryffindor was up in the match against Slytherin when Harry caught the Snitch, multiplied by 35
4) How many students take part in the Triwizard Tournament during Harry’s fourth year? Multiply this number by 28
5) What is the house number of the Headquarters for The Order of the Phoenix in Grimmauld Place? Multiply this number by 21.
6) How many chapters are there in Harry Potter and the Half-Blood Prince? Multiply this number by 14
7) How many Deathly Hallows are there? Multiply this number by 7
If the Pottermore team can take numbers from the listing of items in a sign to the number of a chapter, then seeking out number mentions in the upcoming books probably isn’t going to be much help. Numbers can come from virtually anywhere!
However, I do see just a small hint of a pattern. Look at this:
Here are the formulas and final numbers used for entry so far:
sample: 7 x 10 = 70
1) 5 x 49 = 245 (7 x 7 = 49)
2) 14 x 42 = 588 (7 x 2 = 14, 7 x 6 = 42)
3) Today’s involved two sets of problems. First, you had to do the math to figure out how many points Gryffindor was up (80 – 20 = 60), then multiply by 35 (7 x 5) for 60 x 35 = 2100
4) 4 x 28 = 112
5) Tomorrow, we can anticipate a factor of 21 (7 x 3)
6) A factor of 14
7) A factor of 7
Times released so far:
1) 4 am Eastern, 9 am British
2) 5 am Eastern, 10 am British
3) 6 am Eastern, 11 am British
4) 10.30am Eastern, 3.30pm British
5) 6pm British
6) 2pm British
7) 1am British <– caught us by surprise
Location of Magical Quill:
1) on a place within Pottermore where various quills floated, or “flew,” around and we had to catch one like Harry on the broom in the underground challenge at the end of PS/SS
2) hidden within a picture on a page of WarnerBrothers
3) on an ad placed in the top right column of a page at The Guardian with an article on Pottermore. This time, you had to swish and click your cursor over the quill to make it levitate to the top.
4) Sony Harry Potter page , go here to see what is it like pottermore field guide
5) Users were redirected to Scholastic’s Harry Potter page, where users had to capture the quill in an ad space
6) Users were redirected to The Wizarding World of Harry Potter‘s official page, where users had to click on the quill on the map
7) 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.
It seems that we can expect to find these quills hidden on pages of sites that are important to JK Rowling.