The History of Eora, Volume XIII: The Last Ice Age

"...and so, the Vytmádh became the yawning mouth through which Rymrgand drew breath. The Beast consumed the souls of the Deadfire and exhaled a miserable cold that swept across the temperate archipelago. In three months, Neketaka was encased in glimmering ice, and in six, Ukaizo disappeared beneath a dune of crystalline snow..."