Allright guys, i have been enjoying the game so far and all.
But right now im stuck in Mulandir, my Party set up camp in the core, i think i went through every dialog option with the elven mage and the dwarf archeologist. I tried to go outside and go back to the cave with the goblins but can't enter the tunnel.The only questmarker on my map show "advance the mainquest" in the core. At the moment i'm running around the map without a goal, evading every fight and looting trash.
Can anyone help me and tell me what i have to do?

yup i can ^^
just klick the right upper corner - the globe - if you are at mulandir(not the nexus)
worldmap - but it was explained on the game itself (you dint read it dun you ;) )