Inspired by His Own Man - CliffsNotesish - might save you having to read the long original - this has fewer but funnier words - nothing added though - wouldn't dream of moving the story along to completion - His Own Man's author feels very strongly that NO ONE should do anything to develop the story - even though THEY are doing just that sorta thing with JKR's stories, strange huh?

Harry Potter (raised by Special Circumstances agent Diziet Sma and sentient drone Skaffen-Amtiskaw) returns to Earth to attend Hogwarts. Sorted into Ravenclaw by a deeply offended Hat, Harry begins to jolt the Wizarding World (especially Headmaster Albus Dumbledore) with a culture shock of galactic proportions — as The Culture's own Minds try to anticipate what Harry will do next.

A bit of insight into the moving stairs at Hogwarts.

Harry Potter reached the Mirror of Erised and retrieved the Philosopher's Stone. It's in his pocket! Lord Voldemort has ANOTHER REASON to kill him. He doesn't want the Dark Lord to get the stone and live forever doing evil more unspeakable than anything he's done before. But Harry doesn't want to die. He's barely had a year of LIFE. And the mirror has never seen anything like this.

After a less than tranquil lecture on caution with The Draft of Peace, Snape finds himself needing to explain things of deeper significance (concerning death) to Harry Potter, who (after all) has had more than his fair share of Death.

A Potions lecture — by an unusually talkative and animated (even somewhat friendly), Professor Snape.