Excellent writing...
But I can't handle Harry and Hermione leaving magic behind! It's just not right. It doesn't feel right to me. They way JKR ended her series was perfect to me, though I definitely wanted more... Which I eventually got in the Cursed Child but... That thing does not count as a proper Harry Potter book. Yick.
Anyways, good story but I don't like them leaving the magical world. It makes me sad. So sorry, hope I didn't offend you!