Originally posted by challitajg.12:

Thanks all, I thought he’d just pop up after every boss fight and mention some things like he did with mining copper and searching for cores in the Black Forest after first boss.

after Bonemass the game expects you to have caught the hang of it, meaning you should know by instinct what to do next, and if you don't, go explore for yourself. its sort of a trap for newbs, as they are likely to enter plains before mountains and get rekt.

but yeah anyway, 4th and 5th boss you gotta find on your own.
the last tip Hugin gives is the one about the wishbone and if i am not mistaken, he tells you where to find silver, so unless you skip his tip you shouldn't end up in plains instead of mountains.