Morja is a level 12 quest giver located in in the Darkmoon Faire camp, which is only available during the bi-monthly Darkmoon Faire event. On even months, it is south of Goldshire in the human starting zone of Elwynn Forest. On odd months, it is southwest of Thunder Bluff in the tauren starting zone of Mulgore.
Morja has lost Jubjub, her jubling frog, and only 
[Dark Iron Ale Mug] can get him back.
She starts the quest 
[1] Spawn of Jubjub.
See List of Elwynn Forest NPCs.