"Sir,"
Harry said tentatively, "Is what you want to tell me related to that prophecy? Is it to help me... survive?"
"It has a great deal to do with that prophecy."
Dumbledore said it so casually, as though Harry had asked what the weather would be like tomorrow. "Of course I hope it will help you survive."
Dumbledore rose, went around the desk, and walked past Harry.
Harry turned eagerly in his chair, watching Dumbledore bend down before the cabinet beside the door.
When Dumbledore straightened, he held a shallow stone basin Harry recognized, its rim engraved with a ring of strange symbols.
He set the Pensieve on the table in front of Harry.
"You look very worried."
Indeed, Harry was studying the Pensieve with an anxious, fearful gaze.
His previous experiences with this strange device for storing and displaying thoughts and memories had been enlightening, but all deeply unpleasant.
For instance, the last time he had entered it without permission, he had seen many things he did not wish to see.
Yet Dumbledore was smiling.
"This time, you will enter the Pensieve with me... and, even more unusually, you have permission."
"Where are we going, sir?"
"To take a stroll down Bob Ogden's memory lane."
As he spoke, Dumbledore drew a crystal vial from his pocket, filled with a swirling, floating silvery substance.
"Who was Bob Ogden?"
"He worked for the Department of Magical Law Enforcement in his day."
Dumbledore said, "He has been dead for some time.
But before he died, I managed to find him and persuade him to share these memories with me.
Now, we are going to accompany him to a place he visited while carrying out a task.
Harry, stand up..."
But Dumbledore could not pull the wooden stopper from the crystal vial. His