((Sorry!  I obviously failed to describe the terrain properly.  You and Kasumi are in a tunnel of trees, at the end of which seems to be a clearing, or at least a wider point, in which two guards are walking back and forth, and which a lantern or two seems to be lighting.  The end of the tunnel of trees and the begining of the clearing is about 120 feet away.  You spotted the guards shadows because of your wonderful spot check.  You can't yet see past the guards, or even the guards themselves, as you are only aware of them from their shadows, cast on the ground towards you by the lantern light.  The trail is packed dirt, the trees are thick, but not impenetrable.  If you want to approach close enough to use your Dancing Lights distraction, that's fine, but I didn't want you do so based off false information.))