Red Hen Publications — His Draught of Delicate Poison
all of the Potterfics

Where Do You Go After Hogwarts?

His Draught of Delicate Poison

What if you stripped that silly Marriage Law Challenge of its “purebloods must marry Muggle-borns” demand, and the Ministry actually did something to encourage pairing off? Well, you might get a social imperative reminiscent of a Regency Romance.

Harry Potter cross-pollinated with Georgette Heyer's ‘The Grand Sophie’.

Seriously, but seriously AU.