While Nicephorus and his army were busy plundering the Bulgarian capital, Krum mobilized his people (including women and Avar mercenaries) to set traps and ambushes in the mountain passes. Initially Nicephorus intended to march through Moesia and reach Serdica before returning to Constantinople but the news of these preparations for a battle changed his decision and he chose the shortest way to his capital. The overconfident Emperor neglected to scout ahead. On 25 July his army entered the Varbica Pass but his cavalry told him the road was barred with thick wooden walls and Krum's detachments watched from the heights around. The Emperor became panicked by the situation and repeatedly stated to his companions "Even if we have had wings we could not have escaped from peril." Before they could retreat, the Bulgars blocked the valley entrance too.