the Glades with an earthquake-generating device. When Robert Queen tried to extradite himself from the plan, Malcolm arranged for the bombing of Robert's yacht, marooning Oliver on the island of Lian Yu. In season one, Oliver returns to Starling City five years later as a hooded vigilante and begins interfering with Malcolm's plans. Although Malcolm is seemingly killed by Oliver in the finale, his machine still levels the Glades and kills hundreds, including Tommy. In season two, Malcolm is revealed to have faked his death and returns aware that he is father to Thea Queen (Oliver's technical half-sister). He convinces Thea to leave with him after Moira Queen's death at Deathstroke's hands, and offers her training to become a skilled fighter in martial arts. In season three, the League of Assassins hunt Malcolm for breaking their code with his undertaking. He turns Thea into a target by brainwashing her with a drug that leads into her murdering Sara Lance, forcing Oliver to kill Ra's al Ghul to save his sister. With Malcolm's training, Oliver manages to kill Ra's and (per their deal) hands the League of Assassins' leadership to Malcolm as the next Ra's al Ghul. In season four, Merlyn resurrects Sara with the Lazarus Pit to appease Thea and Laurel Lance. Later, Nyssa al Ghul leads a rebel faction of the League of Assassins against Malcolm. Malcolm chooses to maintain power rather than hand leadership to Nyssa in exchange for a cure to save Thea's life (from deteriorating Lazarus Pit exposure and blood lust). Oliver ends the civil war by severing Malcolm's left hand (with the demon's head ring) in a duel, and Nyssa subsequently disbands the organization. Adopting a cybernetic prosthetic hand, Malcolm joins Damien Darhk's H.I.V.E. organization. When Lonnie Machin infiltrates H.I.V.E.'s underground facility and causes chaos, Merlyn evacuates many people, reluctantly assisting Team Arrow. When Darhk plans to destroy the world and Star City with nuclear missiles, Merlyn changes sides and assists Team Arrow. At the end of season five, Merlyn again allies with Team Arrow when Simon Morrison kidnaps Thea to force Oliver into facing him on Lian Yu. In season five's finale, Merlyn sacrifices his life for Thea, since he took Thea's place on a land mine. The mine detonates (off-screen) to kill Digger Harkness and some assassins on Lian Yu. Season six reveals that after the League of Assassins' disbandment several loyalists continue