A list of the levels in order, and links to either the thread with the most help or the walk through itself:
You're Fired: http://www.youtube.com/watch?v=WNl2wJ_sKrc
Bad to the Bone: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1433731
http://www.youtube.com/watch?v=ich-uwK6msM&feature=relmfu
Utterly Boned: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1408302
Clerical Work: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1432826
Night of the Living Wall: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1435300
Repairicades: http://www.youtube.com/watch?v=SVkqzDmRz80
Quite the Looker: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1434074
Fails from the Crypt: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1407842
Hook, Line, and Ranger: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1435314
Bug Zapper: http://www.youtube.com/watch?v=skxO4d-IIbs
Slime and Punishment: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1436140
Death from Above: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1412705
Off to Flee the Wizard: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1442537
Better Dungeons and Gardens: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1445526
Goblin City: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1433993
The Killing Floor: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1446139
It's Alive: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1407517
Slip n' Slime: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1436602
Hedge Maze: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1435581
Here Be Baby Dragons: http://www.youtube.com/watch?v=YSEsbLk66Tk
http://www.youtube.com/watch?v=sCvt8e_Hmi8
My Buddies and Me: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1411445
Gathering Grounds: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/New%20Walkthrough%20Requests/thread/1432568
The Voodoo That You Do: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1434532
Lightning Round: http://www.youtube.com/watch?v=Xl22FA7KExI
Fight Fire with Fire: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1407628
They're Wizards, Harry: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer's%20Keep%20Campaign/thread/1407096
Eye of the Storm: http://tinyheroes.com/forums/Tiny%20Heroes/Level%20Strategies/The%20Sorcerer%27s%20Keep%20Campaign/thread/1405229
If you find any better, reply here!
-JenP, QA Intern