Kel’Thuzad returned to Lordaeron in disguise, and over the span of three years, he used his fortune and intellect to gather a clandestine brotherhood of like-minded men and women. The brotherhood, which he called the Cult of the Damned, promised its acolytes social equality and eternal life on Azeroth in exchange for their service and obedience to Ner’zhul. As the months passed, Kel’Thuzad found many eager volunteers for his new cult amongst the tired, overburdened laborers of Lordaeron. It was surprisingly easy for Kel’Thuzad to achieve his goal: namely, to transfer the citizens’ faith in the Holy Light into belief in Ner’zhul’s dark shadow. As the Cult of the Damned grew in size and influence, Kel’Thuzad made sure to hide its workings from the authorities of Lordaeron.
With Kel’Thuzad’s success in Lordaeron, the Lich King made the final preparations for his assault against human civilization. Placing his plague-energies into a number of portable artifacts called plague-cauldrons, Ner’zhul ordered Kel’Thuzad to transport the cauldrons to Lordaeron, where they would be hidden within various cult-controlled villages. The cauldrons, protected by the loyal cultists, would then act as plague-generators, sending the plague seeping out across the unsuspecting farmlands and cities of northern Lordaeron.
The Lich King’s plan worked perfectly. Many of Lordaeron’s northern villages were contaminated almost immediately. Just as in Northrend, the citizens who contracted the plague died and arose as the Lich King’s willing slaves. The cultists under Kel’Thuzad were eager to die and be raised again in their dark lord’s service. They exulted in the prospect of immortality through undeath. As the plague spread, more and more feral zombies arose in the northlands. Kel’Thuzad looked upon the Lich King’s growing army and named it the Scourge, for soon it would march upon the gates of Lordaeron and scour humanity from the face of the world.
