Ganthrifal was a nathrezim dreadlord who had been skulking about Silverpine ever since the Forsaken undead had taken the Undercity from the Scourge. The misguided Forsaken warlock Blarus Whitrick's magical experiments in the ruined castle of Gaval Moch drew the dreadlord's attention, and he spied on Blarus for some time before concluding that the foolish and naïve warlock could be a useful tool for the Burning Legion.
- "He has a fondness for expensive spirits (finding the pun extremely amusing) and likes to remember Draenor's golden age."
The dreadlord pretended to be summoned by one of Blarus' spells and assisted the Forsaken in his studies. With Ganthrifal's superior knowledge of sorcery, Blarus called a few other demons, and his acolytes made great strides in their magical studies. Holding a very low opinion of Blarus, and of non-demons in general, Ganthrifal believed he could allay the Forsaken's suspicions with a few honeyed words. The demons in Gaval Moch (except the warlocks' familiars) were loyal only to Ganthrifal, but pretended to serve Blarus. Ganthrifal fed Blarus' delusions, and the warlock believed he controlled the demon.
However, Blarus soon began to doubt the dreadlord's loyalty and planned to confront Ganthrifal as soon as possible over the matter. Should the demon not satisfy Blarus's test of loyalty, he and his acolytes would banish the creature back to the Twisting Nether.