When a Chinese army directed by the Mongol Prince captured Bagdad, Ahmed magically conjured up an army with his own magical powder (from a magical chest), retook and liberated the city (with the help of an invisibility cloak), and restored the Caliph o power." The waifish boy was found unwanted, starving in the streets of the city, "kicked and bruised and almost dead.When dozens of Dementors surged over the devastated castle, Aberforth Dumbledore created a shielding Patronus Charm to repel them." Meanwhile, Withers and Howard have been led by the head boy into the shed where Hammond's body has been taken.