Possible Clues:

• Group of nine things
• The Muses, as a group
• One over the eight
• In the end Ena is one over the eight
• Supreme Court, for one
• Ruth comes out from underneath the nine of them
• Three trios
• Nine finish, almost (almost!) getting stuck
• That's the way to make one one over the eight
• In the end, Ena might get confused if she's one over the eight