Cain wouldn't have any problems locating anyone or anything with {Eye of Clairvoyance}.
With a single scan, he was able filter all the useless information being fed into his brain by the skill, locating both Khan and General Arltzwalt in a few seconds.
He placed a hand on Boulder's shoulder and the space around them caved in, dragging them in.
A moment later, they appeared in a different space entirely.
This space was enclosed in a dark room. However, with their high perception stats, both Cain and Boulder could see just fine.
There, General Arltzwalt was chained in similar fashion to how Boulder had been, his back rested against the wall.
On the other side of the room, was a figure facing the open balcony attached to the room.
The chilling night wind cut through the darkness, carrying strands of their hair along its path.