Tros was an artificial being made of clay and vril, created by Daedikaron to serve and protect him. As they arrived in Yezud, they both joined Andamo, Welyn, Moru, Ixastophanis and Shimata-Kawa to proceed towards the Desert of Yondo. After killing a horde of demons sent by Tolometh, Tros followed Daedikaron to search for the amulet in Zamora. They both reunited with Shimata-Kawa, Conan and Welyn in the Desert of Yondo. Tros eventually died torn apart by four Pool-Dwellers.