Don't Play with Gods
Prerequisite: None | Suggested Level: 15
There are some elven ruins far southeast of the Condyle mark; look for a trio of Undiscovered Locations on your map. One of these is a corpse holding a key and a letter; read the letter to learn of treasure nearby. Step onto the ruins - there's a pretty tough Nightwraith up here - to find a chest with some sweet loot.
Prerequisite: Complete "Wandering in the Dark." | Suggested Level: 6
Upon finishing "Wandering in the Dark," Keira will mention a magic lamp she was promised. Agree to help find it to begin this quest. Follow her down the steps to find a locked door with an inscription.
The next step is to get the door open by solving the riddle written on it. There are four statues in the room you can light with Igni - lighting in the wrong order will spawn a wraith. Facing the locked door, you should light the statute immediately to the right, immediately to the left, far right, then far left. This will open the door, letting Keira grab the lamp in the chamber beyond. Exit the cave to finish the quest.
An Invitation from Keira Metz
Prerequisite: Complete "Wandering in the Dark" or "Magic Lamp." | Suggested Level: 6
Upon exiting the cave used for the quests mentioned above, Keira will ask you to visit. Do so at her home and ask about her request: there's a cursed island that needs to be saved. This will wrap up this quest and start a new one.
A Towerful of Mice
Prerequisite: Complete "An Invitation from Keira Metz." | Suggested Level: 6
Time to lift that curse. You'll first need to head far southeast of Keira's home to the Fyke Isle. Once there, follow your maker through the hordes of enemies to reach the tower in the middle of the abandoned town.
Inside, use the Magic Lamp on the skeleton to hear a ghost speak. Follow the stairs to the next floor and do the same for the skeleton there. When you reach what seems to be the top floor, look for two levers along the wall. Pull them both down to open a passage to the true top floor.
Up here is a laboratory where you'll learn the truth of what happened here. You'll also receive Annabelle's Remains. To finally lift the curse, head to your new marker on the mainland to the north. Give the remains to Annabelle's lover Graham (reenter the house to see what happens if you'd like), then return to Keira to wrap up this long quest.