Getting Gale from Invisibles.

Hi, i need a bit of help finding Gales.

I have fought the boss in End of the World, so i've got to the final save point and all that. I've been getting items for Synthesis, and now i'm on ultima weapon, and i need more Gales. Trouble is, i dunno where to fight Invisibles, because i've searched all around The End of The World, and i can't find any.

Could someone please tell me where they are, or even if i can fight them again (hopefully I can).



--EDIT--

Ah sorry, i found em. It's because the last 3 times i came to the place where you can fight i found nothing but those witches. No probs them :)

yey!