The Fear Manifestation Ritual is a ritual that brings a person's fears to life and are used to kill that person or another person.
Wanting to help children, rejected for a manager's position at Plucky Pennywhistle's Magical Menagerie and emotionally traumatized by the death of his brother as a child, Howard decided to use the ritual to kill bad parents as he believed that they needed to put their children first. Howard set the ritual up in the subbasement of the store and used it to kill a man who was hitting on the babysitter, a bad father and Saul who was planning to reveal what he knew about Howard's actions, manifesting a vampiric octopus, a unicorn and a shark for the three. After Sam Winchester started investigating his actions, Howard set two clowns after him to kill him, but was confronted by Sam's brother Dean who turned the ritual on Howard, using his own fear of his brother's drowning to summon the ghost of his brother who drowned him. Howard's death broke the spell he had cast to kill Sam and the clowns disappeared.