Front door key

The  is a key found under the doormat to Nora T Hagg's house. It is used to unlock the front door to then enter the witch's house during the Witch's House quest.

There is also another spawn of the key which can be found on the second floor upstairs in the same house next to a cauldron.

Trivia
Players who have not started the quest can still obtain the key by searching under the Door mat. However, When they use use the key on the door their character says, "It'd be rude to break into this house" and they do not enter.