The Nosferatu was Sabalom Glitz's ship. When on Iceworld, it was taken by Kane to make Sabalom give up the map to the treasure of Svartos. During the emergency, it was used by the people to try to evacuate Iceworld, but it was rigged to explode, killing them all.
Sabalom later took Iceworld and renamed it the Nosferatu II. (DW: Dragonfire)