Mstislav hired Cumans and again invaded Halych in late 1220 or early 1221, but could not capture the capital. Mstislav's fiasco encouraged File to join Leszek's campaign against Volhynia, leaving Coloman and Salomea in the newly fortified Church of the Virgin Mary in Halych. Taking advantage of the absence of the bulk of the Hungarian army, Mstislav and the Cumans laid siege Halych in August 1221. File hurried back from his campaign, but Mstislav defeated his army and he could only flee with the help of a Galician boyar, Zhiroslav on 14 August. Coloman's retainers tried to resist in the fortified church, but the lack of water forced them to surrender. The Polish chronicler, Jan Długosz, wrote that Coloman and Salomea were imprisoned in the fortress of Torchesk.