the fact is that Miss Greengrass was not supposed to arrive in that corridor for several hours. I am not sure why her party arrived in Mr. Malfoy’s company, and had Mr. Nott arrived seemingly alone, events would have played out less farcically.
That seems very important, so why didn’t he ask any of them why they arrived early? It looks like a blatant mistake on his part.
I agree—this is central to figuring out the next few chapters. My best guess is that Harry said “Hello, Voldemort” so that an invisible Cedric Diggory could overhear. Diggory could time-turn one hour back to tell Dumbledore at 5:55 or so, or, alternatively, could inform Dumbledore after 6:55. Dumbledore himself has a time-turner, so as long as Diggory gave no information from after 7:00 Dumbldore could travel back 6 hours from then. Dumbledore knows that Harry is Riddle, so he probably has some aces up his sleeve.
Quirrel says:
That seems very important, so why didn’t he ask any of them why they arrived early? It looks like a blatant mistake on his part.
I agree—this is central to figuring out the next few chapters. My best guess is that Harry said “Hello, Voldemort” so that an invisible Cedric Diggory could overhear. Diggory could time-turn one hour back to tell Dumbledore at 5:55 or so, or, alternatively, could inform Dumbledore after 6:55. Dumbledore himself has a time-turner, so as long as Diggory gave no information from after 7:00 Dumbldore could travel back 6 hours from then. Dumbledore knows that Harry is Riddle, so he probably has some aces up his sleeve.