It takes a few minutes of carefully navigating the narrow passageways, before she comes across... a dead end, where the trail apparently ends. The scent ends here, as well, and she can't see a clear path, leading onwards.<br/><br/>(A DC 40 Perception check, or a few minutes spent searching (since you auto-pass the lower DC), plus a DC 30 Will save vs. Illusion, allows Chess to notice that several of the boxes are, in fact, constructed out of shadow magic, and, once disbelieved, can be passed through.)