Limbo is a dimension that is not connected to our own time, therefore time doesn't exist there. Hybras was a magical island placed in Limbo by a ring of magical warlocks. The sky in Limbo is forever dawn, tinged with red. Whilst time doesn't exist in it, time passes very quickly outside it, with the lifetime of Leon Abbot in limbo being equivalent to 10,000 years of normal time. While Holly and Artemis were in Limbo fighting the demons for what they think was about 2 hours, in real time it was three years and in that time Artemis was presumed dead, Foaly had married Caballine and other events had took place that shocked our hero and heroine.