Snape bowed his head over his snifter, wrapping bony hands around the delicate bubble of glass and taking what scant comfort he could from the fragrant bouquet of the cognac.
"Precisely. When he strikes, among his earliest priorities will be an attempt to assume control of Hogwarts - he's always been utterly obsessed by the place. To that end, he'll search for the Governors. By then, you and Astoria have to be unfindable, by the full resources of the Death Eaters and the Ministry.