Moana shook her head. "I need to take it home. I don't think it can do anything here." She reached forward and plucked the stone from Amy's palm, stashing it back within the safety of her necklace. "The heart of Te Fiti is... it's her heart. Without it she can't be the mother island... if the heart is out then... she's..."

She bit her lower lip to stop herself from becoming frantic.

"Without the stone... there is nothing to stop the darkness that consumes my island." The heart had to be returned so that life could return with it.