[His fists immediately fly up for defense but the blows never come. The attack never comes and he and Korra are greeted by silence and darkness. Approaching the door, he squints through the dark and spots the bars.

Immediately his mind goes to Katsura and what the man had told him, about the one CERES was holding captive. Even more immediate, he turns to Korra and without looking directly at her he gestures to the dark room.]

You see that? Bars like that only exist if they're keeping something locked in. I want to see what they're hiding. Think we could get some light? Fire maybe?

[Without waiting for an answer he's already slowly creeping into the room.]