Dumbledore stood outside the door.
"I need to go out and take care of something."
"Uh... are you going off to work again?"
Dumbledore's heart softened.
But...
"This matter is important."
"I'll only be at ease if I go oversee it myself."
Black actually did not care that Dumbledore was going off to work.
So he casually asked, "What is it?"
But Dumbledore mistook his nonchalant manner for disappointment.
Ah, I said I would take good care of this child.
Yet I've never had much time to spend with him.
Even his food, clothing, and lodging...
Have all been taken care of by the House-elf that old man Grindelwald sent over.
Thinking of this, Dumbledore could not help feeling guilty.
"I'm going to see someone."
"Who?"
"Harry Potter."
Number 4, Privet Drive.
Dumbledore and Black sat on a bench outside the house.
Black raised his right hand.
He curiously experienced the Disillusionment Charm Dumbledore had cast personally.
The charm concealed him so completely
that even he could not see where his own body was.
Not to mention any passing Muggles.
Moreover, because Dumbledore had secretly cast a small-scale Muggle-Repelling Charm, no one else came to sit on this "empty" bench.
Clang, clang, clang!
The sound of hammering nails continuously came from inside Number 4, Privet Drive.
Black knew
that Harry Potter's Uncle Vernon was using a hammer and nails to seal up the letter slot in the door.
"Ah... what a pitiful child."
Dumbledore sighed softly.
"We knew that Muggle couple might not treat him well."
"But we had no choice but to leave him here in their care."
"Because his aunt is already his last living blood relative."
"Only by staying near a blood relative"
"can the protective magic on him take effect."
On the way here, Dumbledore