A Midsummer Night's Dream?

There was a small problem arising at Hogwarts that fell between four characters, Harry Potter and Ginny Weasley of Gryffindor, Cho Chang of Ravenclaw and Draco Malfoy of Slytherin.

You see, Ginny and Malfoy had secretly started seeing each other for years. No one had known about this until young Mr Potter went for a regular stroll to the broom shed to collect his Firebolt and he saw them kissing. Naturally, he was quite upset.

Soon, their parents knew that their children were secretly (or not so secretly) in love. The two fathers opposed it and were asked, with menacing tones and quite a few bad words added to effect, to call it a day.

Now, another problem was that, after Harry and Cho split up a year before, Harry had begun to, er, favour Ginny perhaps more than he had done, making him very angry at Malfoy.

Also, Cho had been clinging onto Harry ever since they split, and was quite determined to win his affection. Harry hated having to put up with it, and rows broke out between Malfoy and Harry and Harry and Cho.

Being a little nosy, Dumbledore had been watching them. He himself had been having problems with persuading Professor McGonagall to go on a date with him, and he decided to take action.

He called for his house-elf, Dobby.

'DOBBY! Fetch me Professor Snape!'

With that done, he settled back in his armchair, smiling at his daring.