Abigale is a distressed woman, whom the player can speak to to begin the Misthalin Mystery quest. She can be found at the south-east corner of Lumbridge Swamp.
After escaping from a house party in a spooky mansion on a faraway island, she seeks help for her dying friend Hewey after being attacked by an unknown figure.
At the end of the quest, players discover she and Hewey were the Killer all along; she claims to do so because adventurers always take all the glory from her when she tries to help others every year, and never gets the chance to shine in the limelight. In her attempt to be a star, she argues with Hewey and kills him. She then tries to kill the player, but is stopped and slain by Mandy, who had survived their attempt.