A'lars was the second son of Chronos and Daina, two of the first generation of Eternals, and was born eons ago in the city of Titanos. A'lars and his brother Zuras were raised in the aftermath of the great civil war which divided the first colony of Eternals. Their father Chronos, who was on the winning side of the civil war, toiled away in his laboratory attempting to discover the secrets of the self-regenerating cosmic life force that he felt his race was capable of attaining. A force field cylinder containing cosmic energy exploded, disintegrating Chronos' body and imparted immortality to all nearby Eternals. A'lars then became a scientist like his father. A'lars and Zuras, both adults at the time of Chronos's death, held a general assembly to determine who would succeed him. The assembly chose Zuras, so A'lars chose to leave the colony to avoid the sort of fraternal rivalry that led Chronos and his brother Uranos to the first civil war. He settled on Saturn's moon Titan, taking over as leader of the underground colony that his uncle Uranos had built centuries earlier. Upon arriving on Titan, A'lars discovered the Uranian Eternal Sui-San, the sole survivor of the civil war that destroyed the Eternals of Titan previously. Sui-San bore two children for Mentor, Thanos and Eros. Sui-San died in Thanos' first major attack against Titan. Mentor implored his father Chronos to aid Titan against Thanos, causing Chronos to create Drax the Destroyer. Mentor later met Rick Jones and Captain Mar-Vell. With his son Eros, he informed Jones and Mar-Vell of Thanos's degradation of Titan. Mentor enlisted Mar-Vell's aid against Thanos. Mentor was imprisoned by Thanos, but freed by Captain Mar-Vell. Mentor joined in the battle against Thanos. Later, Mentor joined in the attempt to cure Captain Mar-Vell of cancer, and attended Mar-Vell's last hours. Mentor later informed the Silver Surfer of Thanos's history. Quasar and Drax attempt to consult Mentor, who apparently kills them.
Powers and abilities
Mentor is a member of the race of superhumans known as Eternals. He has superhuman stamina and durability, and a gifted intellect. He possesses various superhuman powers, including the ability to project cosmic energy as waves of concussive force and the ability to manipulate matter on the molecular level. Mentor has displayed telepathic abilities, the limits of which are as yet unknown. Mentor has knowledge of science and technology far in advance of present-day Earth. As ruler of Titan, Mentor has access to and full use of a wide range of advanced technology located on that artificial moon.
