Logain gives you the key for Zombie 1(aka Loisan's house). If you've misplaced the key
before you complete this quest then simply go back to logain and say 'repeat'.
He will give you another one. Now you must kill level 9 Zombies and obtain a plain skull
Then you must go past Mama Bear into aston and give it to Seymour. He's at the very beginning of Aston.
He will then give you Zombie 2 quest. Please Refer to the Aston link for list of quests Including
Zombie 2, among others and Leveling up Places.