Lance had already informed the team of the most likely places for the ring to be keeping Valmae, but they still had to look at two different locations before they found one that seemed valid. Scrying could only take you so far, and since Lance didn't have a focus to help him find Valmae, they were going purely on knowledge and instinct.
"So how d'yeh want to do this, Henderson?" he asked as they stood, completely hidden by a copse of woods, outside the building.