WAUW'S PROFILE

First of all, a great game! I've spent about 40 hours on it so far, and completed chapter 1 by defeating Captain Colorous for the second time. I'd like to keep playing a bit more to kill some time until chapter 2 is released, but seem to be a bit 'stuck'. I've got two questions in particular:

- I keep reading about an optional boss after chapter 1, but haven't found any trace of something like that. Did I miss something obvious?
- Ankaba is nowhere to be found. She's not in the cave anymore, or anywhere else.

I checked every accessible map for either of them, but haven't found anything. What's up with that?