Hogwarts, Britain's largest community of magical learning, is only decades old and already bitterly divided. England has fallen to a foreign king. And as the stone walls of Hogwarts grow ever higher, whispers say that Salazar Slytherin is plotting something... Two students from either side of a war are driven together by events that will change Britain, magical and muggle, forever.

Dudley Dursley reluctantly accepts an invitation to his cousin's wedding. While there, he discovers some wonderful wizarding adult beverages and meets Cho Chang, who has her own reasons for drinking heavily at Harry Potter's wedding. In the months to come, this unlikely encounter will make him rethink his attitudes towards the magical world and change his life forever.