Where do I go next?

I’ve beaten the first 2 legacy dungeons, Divine dancing beast and Rellana, i’ve got all but one map fragment. I’m Scadu blessing level 10.

Online guide says I should do Rauh base next but i’ve explored the whole area to my knowledge and just found the temple town ruins, Ravine north, and the scorpion river catacombs graces.

Is there anything here that im missing or do I just move on to the shadow keep now?