Question about the Obelisks
 

So, I got through the Creiston Mines and entered Upper Hadron where I came across the guy who showed me the lit up obelisks signifying how many I have visited. Unfortunately I am like 3 or 4 short.

Should I have found all the obelisks before reaching this area, or are there more beyond this and then I have to come back?

you still have long ways to go before getting em all.

and does anybody knows what is in there? i mean some special magic items or runes? is it worth?

what you find inside is a map that can be sold at the human, dwarf or elf castle for different rewards. Unsure if there is random variations between rewards but for me humans offered 50000, elves offered 10 of each rune, and dwarves offered shield +8 defense +20% leadership dwarves.

I wonder what the undead would give me for that map (if I wouldn't clear their castle of course)

I cant find the last one. I have checked the Elven, drawen,dead and human map but am still missing one. Is there one in the haas lab as well or did I just completly over look one ?