Magical Quill challenge? pottermore clue how to

"What is The Magical Quill?

Each day for seven days, from 31 July to 6 August, we will be placing a clue on the Pottermore homepage to help you find The Magical Quill. There will be a new clue every day, and each clue will relate to a different book in the Harry Potter series. On Day 1 the clue will relate to HARRY POTTER and the Philosopher's Stone, on Day 2 the clue will relate to HARRY POTTER and the Chamber of Secrets, and so forth. The clues will also vary in difficulty. On Days 1-3 the clues will be harder, and on Days 4-7 the clues will be easier.

To find The Magical Quill, you need to solve the clue and add the answer to the end of the web address http://quill.pottermore.com This will lead you to a website where The Magical Quill will be located while early access places are available.

Example:

Clue: How many books are there in the Harry Potter series? Multiply this number by 10.

Answer: 70

Next, add this number to the end of the website address. In this case it would be http://quill.pottermore.com/70

Then hit 'Return' to go to the website where The Magical Quill is located.

The Magical Quill detects the birth of magical children and writes their name down in a large book. To find out if your name is in the book, you need to find The Magical Quill and then submit your registration details on Pottermore."

Sounds a bit complicated unless you're a devoted Potter fan under the age of 90.
So far, all the clues have appeared in the early hours of the morning in my time zone. Will this continue for the remainder of The Magical Quill challenge?We know that Harry Potter fans around the world are taking part in the challenge, so we will be varying the times that the clues are revealed. We can tell you that tomorrow's clue (Day 4) will be released between 2.00pm and 6.00pm BST.