Lots of confusion. But we were having a meeting, and Umbridge managed to snag Hermione, who was standing lookout. She imperiused her and used her to force Marvolo and Diggory to come with her.

Some of us ran after them. But there was a bloke lying in wait in Umbridge's office for her. Dunno exactly what happened--that was before we got there.

Diggory was hit. He was looking very bad.