Sanlel's second teleport fails too, despite her destination this time being the middle of the ocean where its being accidentally blocked off would be extremely unlikely. So either she can't teleport at all (which she wouldn't put it past Isansia to figure out a way to bring about), or her attempted teleports are somehow being predicted well enough for them to be preemptively blocked. If the latter, she should still be able to teleport anywhere in her line of sight here that she can confirm is empty. If the former... then she's in trouble.
She stalls a bit more, keeping up the nonthreatening act and trying to tell similar vaguely-plausible lies in the other languages she's picked up pieces of, although at this point she's not particularly expecting to be understood. As she does, she casts a third teleport, aiming to land atop a shelf to the left of the goons (because everyone knows to look behind them first, in this sort of situation).
This one works. She vanishes to the top of the shelf.
(Wait a second. They used physical restraints on the girl. Wherever this is, it hasn't been permeated with teleportation yet. Maybe they actually wouldn't have known to—okay, no, she needs to stay focused, she's not out of danger yet.)