Related Clues:

• Many-headed snake
• Evil organization in the Marvel universe
• Stars taking part in noteworthy drama
• Serpentine creature killed by Hercules
• Monster in filthy drain
• Labour target in jeopardy, high up
• Many-headed snake slain by Hercules
• Hard nuts cracked by unknown group of stars
• Hardy (anag.)
• Sea serpent in the night sky
• In classical mythology, Hercules killed this nine-headed monster
• Minute freshwater organism with a tubular body and a ring of tentacles around the mouth
• Monster? Bit of a titchy dragon
• Mythological monster with multiple heads
• Monster in bibliography -- Dracula?