Sea Dragons are large dragons that dwell in the Dark Sea of Darkness. They are huge and serpentine and can use telepathy to communicate with Throne Wardens. Their king is Yurgen, a huge gray dragon with a daughter named Hulwen. Long ago, they left the land and took to the sea, folding their wings into fins. When they drank water from the First Well, their wings unfolded, so that they could fly. Yurgen's teeth are said to be longer than Leeli Igiby, who is tall, so they are probably about five feet long, in which case Yurgen would be over 200 feet long.