"Gag them"
We reach the bottom of the stairs and walk out into an underground harbor, with a ship waiting, presumably ready to set off to wherever Talongarde is.
Jay says "So you're taking all of us to this Talongarde place?"
"Yes. No use trying to keep prisoners here."
"Why?"
"You came just in time for us to abandon this base. All cells have been called back to the city"