To escape (The Nascent), they must find a means of shifting warrens...Had he (Kulp) been a practitioner of Serc, or Denul or D'riss or indeed virtually any of the other warrens accessible to humans, he would find what they needed. But not Meanas. No seas, no rivers, not even a Hood-damned puddle. From within his warren, Kulp was seeking to effect a passage through to the mortal world...and it was proving problematic.

They were bound by peculiar laws, by rules of nature that seemed to play games with the principles of cause and effect. Had they been riding a wagon, the passage through the warrens would unerringly have taken them on a dry path. The primordial elements asserted an intractable consistency across all warrens. Land to land, air to air, water to water.

Kulp had heard of High Mages who - it was rumoured - had found ways to cheat those illimitable laws, and perhaps the gods and other Ascendants possessed such knowledge as well...

His other concern was the vastness of the task itself. Pulling a handful of companions through his warren was difficult, but manageable. But an entire ship!

(DG, UK MMPB, p.436)