Because he doesn't know what that means, the content of the message cannot make him any more alarmed than he already was, but that's pretty alarmed. Why is he lighter. Can he fly - no, apparently this isn't a Fly variant. He looks in both directions along the corridor in hopes of seeing clues to which way he should go.

Well, from one end of the corridor, two armored Martian marines are approaching him. They aren’t wearing helmets, and they don’t have the good armor, so they are still recognizable as men in armor. They aren’t recognizably armed, though Blai may still understand that their heavy machine guns are pointed at him in a threatening manner.

“Freeze! Hands up!” shouts one. Really what one does with intruders on a warship is shoot them but his bosses are going to want to know how the fuck this guy did manage to intrude on their warship in the first place. He is, perhaps, not yet processing how incredibly primitive Blai’s armor is, and he actually doesn’t recognize his mace as a weapon at all.

Blai doesn't know what that means! However, he will regardless hold his hands - not up, exactly, away from the mace and the holy symbol.

They do not shoot him. One of them will come and take the mace—which they still do not recognize as an intentional weapon but could definitely be an improvised one. They don’t take the holy symbol, having no concept that it’s more than decorative. The other will grab Blai’s wrists and cuff them behind his back.

“Look at this shit the skinnies call armor,” says one.

     “He looks like an Earther.”

“So does Fred Johnson.”

     “How the fuck did he get on the ship, then?” He might have believed that Earth had developed invisibility or teleportation or some shit.

The marines gesture for Blai to follow them and head back down the corridor.

Well, he doesn't like anything about this but he is not commanded to like it. He follows.

They lead him down the corridor and down a flight of metal stairs. At one point they pass a section of wall covered in living plants and artificially lit to almost the brightness of a sunny day, but there are no windows, or drafts, or really any indication that there’s an outside world at all.

Eventually they come to an area that’s recognizably a prison, although everything continues to be made of unfamiliar materials. The doors to the cells are some kind of transparent not-glass.

There are people in some of the other cells!

One of them appears to say something when Blai enters the hallway, although no sound is audible from Blai’s position.

The marines push Blai into one of the open cells and shut the door. (This is done by pressing a button, causing the door to slide out from its concealed position inside the wall with a whoosh.) They take his backpack first, but not his holy symbol.

Once the door is closed, the handcuffs automatically unlatch and fall from his wrists.

There’s a cot in one corner, with a thin mattress that is nonetheless much more comfortable than anything available at the Worldwound, possibly more comfortable than anything available in Golarion if you aren’t rich. In the opposite corner is a toilet. Otherwise the cell is bare.

Maybe this is underground. They look like humans, if strange humans - well, the woman might not be a human? But she could be one, she'd just be an exceptionally spindly one or something. And they have some way to Permanency Daylight so they can grow plants down here. The gravity thing he has no explanation for but stranger things have happened.

He nudges the cuffs into the corner of the cell. He starts taking off his armor, he doesn't need it in a cell. "Do any of you speak Chelish, common Taldane, or Infernal?" he asks the hallway, in case they can hear him, though probably they can't, he couldn't hear the one guy.

No one bothered to turn on the noise canceling on Blai’s cell but they did for all of the other prisoners, and it works in both directions. No one can hear him at all except the marines, who are already leaving. (Babysitting prisoners isn’t their job; the cells are in fact really hard to break out of, and the automated security system will fill the entire brig with knockout gas if it detects any serious attempt at escape.)

Naomi does see his mouth moving and taps her ear twice, which is the Belter sign language gesture for “I can’t hear you”.

He neither understands nor Comprehends Belter sign language but it's easy enough to figure out from context; he nods. Once he's got the armor off he - can't read the Acts, they took his bag. He gives Iomedae a brief sitrep in case She needs that and then Prestidigitates himself a chess set.