On the third day after learning about the movements in Germany, Alistair received the latest news from Snape: You-Know-Who had indeed found Gregorovitch and murdered him.
Although this news was regrettable, it brought Alistair a sense of relief.
At least for the short term, You-Know-Who probably wouldn't require him and Snape to go to Malfoy Manor again; they only needed to finish a batch of potions on time and send them out.
Chapter 485