"Clocking in at barely over 40 minutes, Permafrost is an intense, cohesive effort that packs more punch in its very restrained running time than most 70-minute albums... Among its many qualities, this disc proves that “concept albums” can be something different from the overblown messes that have unfortunately become synonymous with progressive rock, and that a purely instrumental palette can be used very effectively for storytelling purposes."

Progsphere