Trying to find a specific module

Awhile back I was a player in a game that had to do with Magnimar. Because of this I believe the DM was using a module from Paizo and I would like to see if I can find it to use for a game I am going to DM. From what I can remember of the campaign, I think we started in Sandpoint and had to find a cure for some tainted well water, then we traveled to Magnimar where we arrived during a festival and was attacked by goblins. We spent the majority of the last game trying to figure out what was bringing the five or so bands of goblins together to attack the city under the rule of a humanoid. I'm speculating on the ruled under a humanoid part as we never actually found out.

If anyone has any ideas at all, please let me know. I can try to find my notes for more details if need be. Thanks for any help!

Well, the first part sounds like the beginning of the Rise of the Runelords Adventure Path, but the rest sounds like homebrew material. You might also want to check out Magnimar, City of Monuments as well.

That's a place to start. I'll check them both out. Thank you.

Trying to find a cure for a tainted well sounds a lot like "Hollow's Last Hope".