Hellhound

The Hellhound is an enemy summoned during the Pumpkin Moon. It follows the Unicorn AI and will run quite fast at the player; the player will be barely able to outrun them with Lightning Boots. This can make them a very dangerous enemy.

Trivia
• In Rick Riordan's books Percy Jackson and Heroes of Olympus, there is an animal from the Underworld called the Hellhound.