Cerberus.
The guardian who lets no one leave
Cerberus: Greek Underworld Dog and Heracles’s Twelfth Laboris the monstrous dog guarding the house of . Three heads are familiar from many images and accounts, but the ancient sources do not agree on one fixed number.
More than a myth.
The family of the underworld dog
makes a child of and , within a family that also includes other formidable creatures. The gives him fifty heads. The describes three dog heads, a serpent tail, and snakes along the back. The difference is a reminder that ancient monster anatomy can vary even when the creature’s role remains recognizable.
What Cerberus guards
At the house of , the dog welcomes arrivals but prevents the dead from returning. His danger therefore belongs to a boundary, not simply to random violence. A living hero who approaches him faces the larger problem of entering a realm that is ordinarily a final destination.
Heracles and the final labor
The makes bringing out the last of ’s labors. allows the attempt on condition that the hero use no weapons. Heracles overpowers the dog and brings it to before returning it below. The episode is a temporary crossing of a rule, not the permanent removal of the underworld’s guardian.
Questions about Cerberus
How many heads does Cerberus have?
Three is a familiar number in the and much art. gives fifty, so the answer should name the tradition it follows.
Did Heracles kill Cerberus?
No. In the he captures the dog, brings it above ground, and returns it to .
It’s a family affair.
The stories of Cerberus.
Ancient voices.
Enduring stories.
Myths have many tellings. These are the ancient works behind this profile, linked to freely available English translations.
Theogony
Lines 306–312, 767–774
Library
Book 2.5.12