Slytherin has been the house of dark wizards, but their history is more interesting and complex than people think.

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And finally, British author and creator of the Harry Potter series, J.K. Rowling, whose main antagonist Voldemort, belonged to the House of Slytherin and whose sidekick was the snake Nagini.

“We’re like our emblem, the snake: sleek, powerful, and frequently misunderstood.” Plenty of my friends and colleagues have been sorted into Slytherin on the Pottermore site. Almost all of ...