I can't believe that A) I didn't notice either of these the first time I read this, and B) No one else has pointed these out...

Harry accepted the book, looking down at the cover.

"The Magician's Nephew," he read aloud.

Why in the world did Sirius give Harry the sixth book in the series to read first? Wouldn't it have made it more sense to have him read the Narnia series in the order that they were published?

"I think all we can hope for is that he's not dead," Remus murmured softly. "He's got to stay with his family. Dumbledore said so."

"I'm his family!"

"Not his blood."

"You're his blood!"

Remus lifted an eyebrow. "I'm a second-cousin of James' mother, once removed. There's a difference."

Being related to James wouldn't do damn since it was Lily that left the protection on Harry, hence Dumbeldore leaving Harry with Lily's sister. If Remus were related to Lily, then things might be different.

I love the SH series dearly, but I can't believe that I didn't notice either of these flaws the first time around...