Hrulgin were created by Aldur, Torak and the other gods during the Period of Making. When they were first beheld, they were branded as unseemly and the gods rose their hands against them in a bid to destroy them. However, UL forbade this, and the Hrulgin were sent to the mountains instead. At the cracking of the world, the Hrulgin went mad. They attacked Prolgu, killing many Ulgos. They also hunted Belgarath and Poledra, but they escaped by taking the forms of wolves.