Bunch of hellhounds just took a dive.

–Hudson River, after using its half of the Sand Dollar

The Hudson River Spirit is the rival of the East River spirit. He dislikes Percy Jackson, and is very polluted and very dirty.

Percy Jackson and the Olympians

The Last Olympian

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.
Percy Jackson and the Olympians
Core Series: The Lightning Thief | The Sea of Monsters | The Titan's Curse | The Battle of the Labyrinth | The Last Olympian
Main Characters: Percy Jackson | Grover Underwood | Annabeth Chase | Tyson | Clarisse La Rue | Thalia Grace | Nico di Angelo | Chiron | Luke Castellan | Rachel Elizabeth Dare
Minor Characters: Travis Stoll | Connor Stoll | Mrs. O'Leary | Silena Beauregard | Charles Beckendorf | Sally Jackson | Paul Blofis | Blackjack | Zoë Nightshade | Bianca di Angelo | Juniper | Michael Yew | Ethan Nakamura
Olympian Gods: Zeus | Hera | Poseidon | Demeter | Ares | Athena | Apollo | Artemis | Hephaestus | Aphrodite | Hermes | Dionysus | Hades | Hestia
Minor Gods: Amphitrite | Ariadne | Hecate | Iris | Janus | Morpheus | Nemesis | Pan | Persephone | Triton
Titans: Kronos | Atlas | Calypso | Iapetus | Krios | Hyperion | Oceanus | Prometheus
Related Content: Rick Riordan | The Lightning Thief (film) | The Sea of Monster (film) | The Demigod Files | Demigods and Monsters | The Ultimate Guide | The Heroes of Olympus