The Return of Dr. Sloth
- Main Article: The Return of Dr. Sloth
When Zorlix and Xarthab inherited the mines of Kreludor from their father, Zorlix believed that since he was the older sibling, he should have the final say in how the mines were run. Xarthab, on the other hand, believed that he should run the mines. As their argument intensified, the Grundos of Kreludor split up, the Purple Grundos siding with Zorlix and the Orange Grundos siding with Xarthab.
Eventually, Zorlix was convinced by his advisor, Parlax, that his brother was planning a rebellion against him. To prevent this supposed rebellion, Zorlix and his Purple Grundo followers attacked Xarthab and his Orange Grundo followers. Believing that his brother was trying to eliminate him, Xarthab fought back, igniting a civil war among the Grundos.
This civil war continued until Gorix arrived on Kruludor and revealed that Parlax was actually working for Dr. Sloth and had been manipulating the two brothers into fighting so that Sloth could steal Kreludite from their mines unnoticed. After Parlax's treachery was revealed, Zorlix and Xarthab joined forces to defend against Sloth's invading fleet of battleships.
- Neopets TCG: Zorlix