The tale of Arack is short, and as elusive as the origin of the demons.
The fable goes that Arack was a powerful sorceress, she was eccentric, insane, and loved spiders. She eventually obtained enough power that she had formed her own remnant. Her love for her spiders was her own downfall, as one of the more intelligent of the creatures, a very massive and powerful corpsepump spider, became greedy for her remnant and tried to kill her. Her spell was hastily done in an attempt to save herself. And this resulted in a horrid mistake in magical energies that fused her into her corpsepump, satisfied, the corpsepump made the remnant hers, and uses the still living abomination of whats left of the sorceress to cast spells and control her kin.