Moody’s magical eye had now left the door. It was fixed upon Harry. His lopsided mouth leered more widely than ever.
“It hasn’t been easy, Harry, guiding you through these tasks without arousing suspicion. I have had to use every ounce of cunning I possess, so that my hand would not be detectable in your success. Dumbledore would have been very suspicious if you had managed everything too easily. As long as you got into that maze, preferably with a decent head start—then, I knew, I would have a chance of getting rid of the other champions and leaving your way clear. But I also had to contend with your stupidity. The second task… that was when I was most afraid we would fail. I was keeping watch on you, Potter. I knew you hadn’t worked out the egg’s clue, so I had to give you another hint—”
“You didn’t,” Harry said hoarsely. “Cedric gave me the clue—”
“Who told Cedric to open it underwater? I did. I trusted that he would pass the information on to you. Decent people are so easy to manipulate, Potter. I was sure Cedric would want to repay you for telling him about the dragons, and so he did. But even then, Potter, even then you seemed likely to fail. I was watching all the time… all those hours in the library. Didn’t you realize that the book you needed was in your dormitory all along? I planted it there early on, I gave it to the Longbottom boy, don’t you remember? Magical Water Plants of the Mediterranean. It would have told you all you needed to know about gillyweed. I expected you to ask everyone and anyone you could for help. Longbottom would have told you in an instant. But you did not… you did not… You have a streak of pride and independence that might have ruined all.
“So what could I do? Feed you information from another innocent source. You told me at the Yule Ball a house-elf called Dobby had given you a Christmas present. I called the elf to the staffroom to collect some robes for cleaning. I staged a loud conversation with Professor McGonagall about the hostages who had been taken, and whether Potter would think to use gillyweed. And your little elf friend ran straight to Snape’s office and then hurried to find you…”