An Orc tribe attacked the city in 796, Arthindol grabbed Radahn, and the two ran to Owl Well to hide, Arthindol told Radahn that he must hide, and no matter what he hears, he must never get out.
He lowered Radahn down the well. When suddenly the sky turned red, as an Archdemon appeared in front of Arthindol, seeing the opportunity to strike a bargain. The Demon presented himself as Moloch and offered Arthindol to save himself and his brother for eternal servitude. Without asking any questions, Arthindol agreed.
Moloch striked down Arthindol and raised his corpse as a Lich, as he was brought back to life, Arthindol screamed in pain. content with his newly aquired agent of destruction he vanished.
Arthindol, now a Lich, stood strong above the well and fought off hordes of Orcs that rushed to kill both him and Radahn, he killed them in mere seconds with his newly aquired powers. After the fight he floated down the well and told Radahn that they must stay apart in order to keep him safe. Radahn wasn't afraid when he saw his dead brother and listened to what Arthindol said.
Arthindol touched Radahn's forearm, marking him permanently with a blue scar, and Radahn fell asleep.