John Tiffany, Jack Thorne, J. Rowling - Harry Potter and the Cursed Child - Parts One and Two
14 of the most heart-breaking quotes from 'Harry Potter and the Cursed Child': I feel like these were the only lines written by JKRowling herself.
The one about Professor McGonagall not being the headmaster isn't true if you read Harry Potter and the Cursed Child
This is why albus hated him in the cursed child
YA Onscreen: When Hermione Met Hermione