|“||Men call me Darkstar, and I am of the night.||„|
|~ Gerold Dayne, to Myrcella Baratheon|
He's been cut from the TV series adaptation, and he is not expected to appear,as his antagonistic role has been adopted by Ellaria Sand.
A Feast for Crows
Darkstar allied himself with Princess Arianne Martell during her secret attempt to crown Princess Myrcella Baratheon as a new queen of the Seven Kingdoms. During their travels, they get ambushed by Areo Hotah, who ordered them to surrender in the name of Prince Doran Martell. While Kingsguard Ser Arys Oakheart rode to his death, Ser Gerold attempted to kill Myrcella (for reasons not quite yet known), but failed, managing to only slice off her ear and scar her face. He escaped capture.
A Dance with Dragons
Ser Balon Swann of the Kingsguard, along with Obara Sand, is currently hunting Darkstar in order to bring him to justice. Myrcella was instructed to blame him for Arys' death as well, when she returns to King's Landing.
The Winds of Winter
While travelling in the stormlands Arianne Martell discusses Darkstar with Daemon Sand, former squire of the late Prince Oberyn Martell. They both agree he should have died long time before, and consider him a traitor.