|“||Bunch of hellhounds just took a dive.||”|
–Hudson River, after using its half of the Sand Dollar
Percy asks him and the East River spirit to sink all of the Titan ships and monsters that were coming across their rivers in exchange for the sand dollar his father, Poseidon, gave him for his fifteenth birthday. After both spirits agree, Percy splits the sand dollar between the East River and the Hudson River. Holding their side of the bargain, both river spirits stop the ships from crossing.
In the Last Olympian, he is described as wearing rags and seaweed, with a chainmail coat made of bottle caps and old plastic six pack holders, and had a face blotchy with algae.
- Hydrokinesis - As a river spirit, he can control and manipulate water as well as the pollution and garbage in it.