Mortem stayed grimly silent throughout the briefing, and throughout the entire jounrey towards the hab-block. An interrupted spell could mean many different things. Some unkown horror of the warp could be stalking the city as they spoke, or perhaps some foul malignancy was released to taint the air. As his 1,534 pound armored footsteps echoed down the halls, he looked to Inquisitor Maximus. 

"We must exercise more caution than normal, Inquisitor. There could be anything waiting for us in the hab-block."