after trying to figure out what to do to save phineas from being exiled she sings a familiar song. 'The battle is not ours

We look to God above

For He will guide us safely through

And guard us with His love

I will not be afraid

I will not run and hide

For there is nothing I can't face

When God is at my side

No, there is nothing I can't face

When God is at my side'

eventually she manages to out haman as a liar which prompts king xerxes to banish haman to the isle of perpetual tickling and Isabella abdicates the throne to esther, phineas gives up his guard role and they go back to Danville the end.