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2 'Potter' Fans Turn Writers

The mythical Hogwarts looks nothing like the Oregon countryside, but inside their unassuming Oregon home, the Jacobson girls, Natalie and Emma, are under a spell.

By now, most people know there are legions of devoted Harry Potter fans. But perhaps none are as obsessed as these two sisters, reports The Early Show national correspondent Hattie Kauffman.

They can't stop reading "Harry Potter." They have read the entire series over and over again. One positive impact is that Natalie is now an author, in a manner of speaking. She got so tired of waiting for the fifth Potter book, she wrote her own.

Referring to "Harry Potter and the Order of the Phoenix," she says, "I wrote that when I was 12 and 13."

And she just finished another 800 pager: Her own version of how Potter's adventures should continue in book six, to be released in the U.S. at midnight.

She says she has read the first book 51 times. That is the same number of times she has read the second, the third, and the fourth books, she says laughing.

For Emma it's been 48 times, she says.

To be clear, Natalie and Emma Jacobson are not nuts. They're 4.0 students who excel in subjects like algebra and history.

"We don't have, like, cable, and we don't have any friends that live really close," Emma says.

But they have plenty of literary friends.

Showing her room, Natalie says, "This is my own chamber of secrets." With every wall papered in Potter, she's begun to decorate the ceiling. It's not your average girl's room.

"No," Natalie says, "It's definitely a little different."

She agrees it is safe to say that she is obsessed.

Melissa Jacobsen indulges her girls' Potter mania, even so far as taking them to London for the premiere of the movie, "Prisoner Of Azkhaban," where they stood in the rain for hours hoping to meet author J.K. Rowling.