There is a window they can sneak into, although there won't be any Chihuelans to be found. There is lots of evidence that someone(s) left in a hurry! If allowed inside and see this, the searchers will accuse the Foreigners of spiriting the deserters away, but won't be able to prove it. In this case, they'll take names of all Foreigners present, to be reported to the Justicar.