[toot033]

The 1st echinop you meet in the swamp is a "special" one that will follow you around if you don't kill it the 1st time you encounter it. It is mean, very tough and I have the scars to prove it. Also you could run into 2 regular ones plus this one if you dont kill the special one right away ( shudder did that... don't want to do it again.) If you don't have the Igni, you may try a blizard potion to slow him down but don't hold me to it.
I don't think you can complete quests that occurred in a previous chapter..... but you can keep things in your inventory that will count towards quests in other chapters.(I.E. if you keep a drowned dead brain from the chapter 1 lake encounter, it will count towards the 10 needed in chapter 2 or the royal wyvreen eggs will carry over from 3 to chapter 4 I think as well).