DISCLAIMER: I think everyone knows by now that J.K.Rowling would strike you down if you dared assumed possession of Harry Potter & Co. So I don't . Assume possession that is. Neither do any of the authors linked below unless one of them is secretly JKR herself. Kinda spooky when you think about it.
There may or may not be SEX. Het sex (a slim possibility) and slash sex (still a lot less than on the HPSlash page). Mostly, however, it involves a non sexually involved Harry dealing with life, the universe, and Snape. Okay, so actually this page just has the link to the sev mentors harry page but still. This is one of the few pages on this site that isn't *totally* about the man sex so enjoy it while you can. Yep, we got lost family and adventures and mysteries but not so much sex as normal. Go figure.
Adrift in A World/Miss Whiskers
Non-slash (i think...) Harry resists veritseum causing himself to be flung into another dimension where there is no Boy Who Lived and he died as a baby. Will he help them with their war against Voldemort? Sure, right after he finishes screwing with everybodies' heads.
Dimension Wander/The Blue Hour
Never partner with Neville in potions, especially if you're Harry Potter. Harry, of course, takes the time to grow up and try to change history before skipping around reality again. Much fun is had by all.
Vocare Prabia/Amber Evans Potter
Hermione and Ron in an alternate universe cast a super powerful summoning spell just in time to snag Harry from the home universe as his alter is killed by Pettigrew. Their world will never be the same...
Forsake Me Not/Aya-dono
Despite it's depressing premise, this one is hilarious. AlternateUniverse!HP commits suicide and switches with the victorious but alone BWL!Hp. BWL!Hp proceeds to pester AlternateUniverse!HP's friends and family because they were never supportive enough which led to his suicide/sacrifice. Chaos and spork abuse follow.
The World Without Me/Eternal Cosmos
Harry won the war but lost everyone so Fawkes gives him another chance. In a world where he died as a baby. Can Harry get close to people again or will the threat of another Voldemort cause him to keep everyone at arms length. Find out! Much better than my stupid summary makes it sound!
The Wayward Trio/hilarity
This is why Sirius should never be allowed to 'experiment' with charms. Ever. Actually, it's about six people who trapse to the future so I'm not actually sure where the trio bit comes in...hm, maybe if the author finished it? (*pleading eyes*)
Time to Spare/EmySabath
Thanks to an ambush by Voldie, Harry and Draco (who are actually not a couple in this, yes, I'm shocked at my maturity as well) are sent back to the past and end up going to school with the Marauder generation. Very different from the usual Harry in the Past stories because instead of goofing off with his parents and godfather, Harry integrates himself in the Slytherins, makes friends with Snape, and works on defeating Voldemort from the inside out. Truly awesome.
Harry Potter and the DADA NEWT/Ishtar
That good old Potter luck strikes again.
Avocado Kedavra!/jennifer snape
I recc'd this little crack fic because it was just so unexpected and insane it gave me hiccups from laughing. It's just... bizarre.
Once Upon a Freakin' Time/Evadne
I laughed, I cried...okay, I didn't actually cry but I may have snorted a bit. Everyone should bookmark this because it is too freaking funny. See the sister story So You've Decided to Be Evil in which Voldemort attempts to mold Harry into his dark heir.
The Wizard of Odd/Sweet Jane
It's obviously a prerequisite of super powerful wizards to be completely nutso. Case in point, Dumbledore deciding to have Hogwarts perform 'The Wizard of Oz.' Have I mentioned I love psychotic!Harry?
Golf Balls/Wraith 11
Just, um, read it. It's such dry humor while being utterly ridiculous that it's fantastic!
So Sue Me/lunakatrina
Man, Harry is such a smart ass little bastard in this one. I love it!
Baby Boy/
Super sweet and heartbreaking rendition of Sirius explaining exactly who Harry is to him.
The Price of Love/HP-KD
Alcoholism and abuse themes. Things weren't supposed to be like this when Harry moved in with Sirius. Will Sirius get help or will Harry be sent back to the Dursleys?