/ Quizzes / Harry Potter and Greek Mythology Quiz Harry Potter and Greek Mythology Quiz by Holly HartmanRead more about Greek and Roman mythology! Question 1 (out of 10): Nope, Fluffy isn't one-of-a-kind. What is the name of the giant three-headed watchdog in Greek myth? Cerberus Augeas The Cerynian Hind ©2022 Sandbox Networks Inc. All rights reserved. Sandbox Learning is part of Sandbox & Co., a digital learning company.