This should be easy to find unlike the other I can give you details this time. A friend mentioned it to me a while back.

I am looking for the AU version of harry potter where he is both a slytherin and saves the basilisk from death. If that isn't enough info say I can probably provide more but that seems unique compared to what I can find.

Most appear that he kills the basilisk would like to read where he does not and takes control of the chamber of secrets.

 

Right, while english may not be your first language, this forum isn't here to tell you all the stories that you've either forgotten about, or been told about. If you keep this up, people are just going to end up getting really pissed off at you.

Go find it yourself.

 

http://www.fanfiction.net/s/5142024/1/Harry_Potter_and_the_Sorting_Hats_Gift

Saysa as the basilisk in the Chamber?