Stheno is the mother of the Snakes on Mercy Island. Her goal is to drive away all beings from Mercy Island and claim it for herself!
Stheno was one of the immortal Gorgons in Greek mythology, vicious female monsters with brass hands, sharp fangs and hair of living, venomous snakes. Medusa is her well-known sister.
- Stheno's Snakes profile for a list of her powers