Balak of Khanzit made an attack on Zerdana, but withdrew when Baldwin II arrived in the area, warned by an archbishop. However when Baldwin returned to Antioch, Balak resumed his attack on Zerdana. Baldwin then reduced his forces to an elite group and went again to protect Zerdana. Balak's reaction was the same, to move away while Baldwin was near, then to attack afresh when he left the area. Baldwin started off back to Jerusalem. But he had only reached Tripoli when he was stopped by bad news: Balak in a sudden raid had captured Joscelin of Edessa and Waleran of Birejik and held them imprisoned. Baldwin had to turn back yet again to protect Edessa, but sent the True Cross on to Jerusalem, where it arrived on September 20