If you have nothing left to do in the starting section of Broken Valley, then first take out the goblins east along the mountain from where you met Talana, or west and up a mountain trail. Both those locations contain a hatch to the derelict tunnel, where you can level some more (and get a bit of loot) before taking on the skeletons around Lovis' tower.

There is no rush to get to Lovis' tower (or any main plot quest, for that matter).