Devaguea considered for a moment, before glancing at Serena. He turned back to Tina. "Can you make someone comprehend languages? Cause most trolls don't know Common. And I know most of us don't speak giant."<br/><br/>If she didn't know the spell comprehend languages, he had Tina cast invisibility on herself, and the group moved up. He would make a decision on what to do about scouting the building when he actually saw it.