Cassidy Cane goes by many titles - archeologist, anthropoligist, adventurer - but none more fitting than that given to her on some strange worlds: Slipstreamer. Cassidy slips between worlds, traveling to bizarre planets and alternate Earths to find extraordinary new technologies and artifacts that might better humanity! On a trip to a time-displaced frozen tundra, Cassidy must defeat the Tuurngait, a polar creature of myth and legend that guards an impossible disc with the power to run cities on clean energy for generations. Limited by the technology of this world trapped in the year 1845, can she save herself and the Peglars from the beast?