In return for this, King Lathas granted Lord Iorwerth control of West Ardougne. To establish control over the city, the Iorwerth spread rumours of a false plague in the city. They then falsely posed as Mourners who would take people from their homes to help them. In reality, the plague victims were taken underground to a large underground tunnel where they were slaves for the Iorwerth. The slaves dug for ores, though their primary objective was to access the Temple of Light, which contained massive death energy that could summon the "Dark Lord".