With the mocking manacled, the commander moves over and examines it, a look of fascination on his face. A moment later, that look vanishes, as his features go hard and he moves his steely gaze from one party member to another. Several long moments pass, then he speaks, addressing the guardsman that brought in the mocking.
"Send me Agna and Ingra, Hargrim, and Rogan.. Then take half our remaining force and organize them into pairs. Sweep the place from top to bottom. If you find anyone you don't recognize, take them into custody. If they resist, kill them." The guardsman, wide-eyed, salutes and leaves in a rush. Then the commander turns his attention back to you lot.
"When my people arrive, you will disarm yourselves and place any weapons and potentially harmful magic in that locker to the left of the door. You will then be escorted back to your rooms and locked inside. Make yourselves comfortable. I will have each of you brought to me in turn to provide a full accounting and explanation of what your friend Magnus just said. If I am fully satisfied, then you will be released from confinement. Then, and only then, will I decide whether you are to be allowed into the pass. When you leave the fort, no matter which gate you take, out or back whence you came, your weapons and goods will be returned to you. Any questions?"