Tarlus was a solider. He fought alongside Iolaus for King Pelos at the Battle of Peltros. When King Pelos was under attack, Tarlus left Iolaus' back to save the king. Pelos was so embarrassed that he swore Tarlus to secrecy about the incident. Though he felt badly about leaving Iolaus, he could not reveal the reason for many years. Tarlus was kind to both men and beasts. He forged a special relationship with the Primords who lived near Zebron. They helped him to retrieve Ramina from Beraeus.