Metznik looked at his surroundings, walking off into a nearby building. The inside was a ruin, furniture was torn up, pots smashed, books trashed around the room. He sat on the floor, leaving his power armor on, and surveyed his equipment, scraping sand out of the weapons. This whole place is ancient. He thought. Where in the hell am I, what damn daemn magic could have managed this....
"Ave Imperator." He said solemnly. He stood up, and walked to the window. "Keep these men and women safe, God Emperor. Guide them as you would your loyal Astartes, and don't let your light wane from my heart." Finishing his litany, Metznik put his right fist over his hearts and watched. The figure on top of the roof had climbed down.
-----
Ze Captain walks up to the others. "Who is that robot?" He asks curiously. "He's not like any of you. Did someone summon him? If they did, I demand ANSWERS!" Her hand shot up, clenched in a fist, and in that fist was his trusty bendy straw.