So Stefan traveled across seas, deserts, and cities until he reached distant Persia. But there he learned a terrible truth. Rugs like the one he had brought were not woven by a guild of masters, but by a single girl. She was held in a high tower guarded by an army. The ruler of Persia protected the girl like the apple of his eye because every rug she wove brought wealth equal to a caravan of gold. Stefan learned that the guards changed every day at the tower's northern wall. Disguised as a merchant, Stefan slipped into the warehouse and hid among the rugs. When night fell and the tower was bathed in darkness, he climbed through the inner passages, following the sound of the loom, and reached the upper room.