You receieve this quest from Marshall, who is in the Boardroom of Gods.
He says in order to awaken Habren, you'll need to find Coventina.
He says shes a prisoner in the fortress high in the Cliffs of Balor.
Talk to Michele_L, who is in the Boardroom of Gods, for how to reach Coventina.
In order to free Coventina, you'll need the Chalice of Restoration and the Cup of Three Wishes.
Talk to Darkstare, who is in the Boardroom of Gods, for help finding the chalice.
To get the Cup of Three Wishes, find the water spirit Elvira in Boscawen Marsh.
You will receive the Free/Restore Coventina quest.