How can you quit a quest on wizard101?

One way that you can exit a account is to find another quest and that way you can overwrite the quest that you did not want.yours,Teeko

Well, technically there is no way to delete a quest. Choosing a new quest will remove the alerts and yellow arrow of a quest you don't want, but the game is designed so that you can have multiple quests at once, so the quest will still be in your book. It is possible that in the future they will create a way to cancel quests, but not very likely for it to happen soon.

-TheWhirld