Re: Ocean Monster? (DStP exclusive question)
It's also a reference to Babylon 5. On the next page, Lien uses the very same words to describe it that are used by some caption to describe to John Sheridan how he saw (or not-really-saw) a Shadow Vessel in Hyperspace.
The dragon-shadow also looks a bit like a Shadow Vessel.
Ser Ilyn, Ser Meryn, Queen Cersei, King Joffrey, The Tickler, The Hound, Ser Amory, Polliver, Raff the Sweetling, Weese, Dunsen, Nale, Ser Gregor Clegane and Chiswyck: Winter is coming!