Arkhan the Black, the Liche King, was the first and most loyal of Nagash's followers and his first lieutenant. He died in a suicidal mission, thus giving Nagash the opportunity to escape. He was resurrected as a Liche by Nagash. When Nagash was killed by Alcadizaar, Arkhan and his Undead army turned to the deserts of Araby where he waged a 1000 year long war known as the "Wars of the Dead". He later returned to fight once more beside his master against Sigmar.
Arkhan grew up in Khemri in ancient Nehekhara as a low born noble. He becomes a heavy gambler and lowlife. He swears alligence to Nagash along with several other lowborn noblmen. Arkhan helped lead the coup which led to the death of the king and brought Nagash to power. He is the first to partake of Nagash's elixir which granted him eternal life. As first lieutenant, Arkhan led many battles against Nagash's enemies and was never once defeated in open battle.
During the rebellion of the High Priests of Khemri against their immortal Lord, Nagash. Nagash was defeated at the walls of mahrak. When it finally fell, Arkhan led a suicidal counter-attack. Arkhan and his body-guards held the enemy long at bay, giving Nagash time to escape. Where his bodyguard fell he fought for more than an hour in the name of his master Nagash. Finally he was slain, not by a hero's sword, but a bullet shot by one the lahmian dragon staves. He was taken prisoner by lamashizzar and helped him learn from the nine books of Nagash.
Arkhan was resurrected as a Liche and returned to Nagash who had mustered a great Undead horde at Nagashizzar. He became the first of the "Dark Lords of Nagash", the foremost of Nagash's captains and apprentices.
Together with the first Vampires, Arkhan led the first assault against Nehekhara but was defeated by the armies of King Alcadizaar. They retreated to Nagashizzar to return and launch a second attack on Nehekhara, now weakened by a plague. Arkhan and Wsoran, the only Vampire who had remained at Nagash's side throughout the campaign, were victorious.
When Nagash was assassinated by the Skaven, Arkhan turned his back on the world of the living and was determined to wreck havoc among them. He led an undead army into Araby and sacked the capital Bel-Aliad, which would never recover to its early glory. For the following 1000 years, Arkhan roamed the deserts, reducing the once proud civilisation of Araby to a few weakened city states and a handful of desert tribes, a time the Arabians call The Wars of the Dead.
When Nagash was reborn, he found that the Tomb Kings of Nehekhara rebelled against his rule. Arkhan returned to assist Nagash in his battle against Settra the Imperishable, but as the Tomb Kings united against them, they were driven back to Nagashizzar. Here, Arkhan drove off the Skaven, who were trying to recapture the warpstone hidden under Cripple Peak, at the batlle of Death Rock. He once more joined his master's undead army as second in command to go north and recapture the Crown of Sorcery and was last seen battling Sigmar's army at the Battle of River Reik.
- Warhammer Armies: Undead, Games Workshop, 1994