The morning of their escape attempt, Faile finds thirty or forty of the gai'shain sworn to her including Alvon and Theril waiting outside her tent. (KoD,Ch28)
Faile tells her followers to leave, but Theril follows the escape party instead and sees Galina crash the house on them. He sees Maighdin's signal and brings Aravine and Rolan to help. (KoD,Ch30)