Where 2 go after 2nd boss???

[bxela1]

After the fire mermaid-snake thing, where do I go next?

[crazybayman]

After the fire mermaid-snake thing, where do I go next?

If you mean Kary (Gurgu Volcano), then your next stop may be the ice cave (north of cresent lake, through the maze of rivers). If you've already done that, then go the castle of ordeals, on the northern continent. Its directly north of the temple of fiends.

[Dragonface]

What you need in the castle of ordeals is a rat tails, then go and show the rat tails to 'King of Dragons' and you'll get a class change.