Examine the family portrait on the table against the wall near the bed. If the portrait isn't there, wait for a personal attendant to enter the room and place it there.
Enter the bedroom of Crysta Everling in the northwest tower and examine the painting that matches the one you originally found in the room of Pelleas.
Steps
Search for clues about the 6 daughters in the painting:
Paintbrush -- Examine the canvas on the easel in the bedroom of Crysta Everling.
Heart -- Examine the large mirror on the wall in the bedroom of Sheila Everling
Wrench -- Examine the broken container next to the dresser in the bedroom of Melanie Everling
Leash -- Examine the leash on the wall in the bedroom of Jenni Everling.
Flower -- Examine the shovel leaning against the wall in the room at the bottom of the stairs beneath the bedroom of Deidra Everling.
Sword -- Return to the entrance of the castle and examine the doll on the floor near Master Eldin Necrosis (this is the clue for the 6th sister, Elise Everling).
Return to the castle and make your way to the spawn point for Alexa in the basement and hail her . Her conversation has nothing to do with the quest, but will allow you access to Everling's Research Laboratory.
Enter Everling's Research Laboratory in the basement by examining the sconce on the wall. (-8,-14,-18)
Examine the 6 circles on the floor to place the 6 dolls of the Everling sisters.
Harvest The Idol of Everling that appears on the floor in the center of the circles. If you have trouble harvesting the idol, try crouching and harvesting in 1st person view.
if you cannot click it in time, do not panic, the dolls and idol will despawn, but you can replace them and try again.
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