Possible Clues:

• Trio of trios
• Series of nine
• Three trios joined together
• Being one over the eight, is Ena confused in the end?
• Baseball team or innings
• Does one need an extra bit to be one over the eight?
• Need an alternative to the Muses, for example
• Cracovienne, a dance that involves a group of nine
• Baseball team
• In the end Ena is confused with one over the eight