"Wizarding whiskey," Albus explained with a grin. "It's a lot like Muggle whiskey but it's got a very fiery kick. We could always talk the barman at the Hog's Head to sell it to us." He laughed and an odd expression crossed his face. "And I've found out that apparently my brother will one day own that pub."
He nodded thoughtfully. "Magic works a little differently, I think. There are ordinary everyday spells that any witch or wizard can use. Household spells, small spells to make life easy, spells you might use at work. But some spells might be too powerful for some to use." He grimaced. He didn't much like talking about the Unforgivables because of what his father had done but, well, he'd brought them up. "Well, the Unforgivables are three spells that the Ministry has deemed... well, unforgivable to use. They are the darkest of Dark magic. The Imperius, which allows you to control another person's mind. The Cruciatus, which causes terrible pain. The Killing Curse, which... well, does what it says. It kills, immediately and irrevocably and it cannot be blocked by even the strongest shielding spell. And Azkaban is the name of the wizarding prison. It's located on an island somewhere in the North Sea."
He took a sip of his tea. "He must have had something good in him. I believe everyone does."