Defeat all the Patrolling Horrors in the Imperial City during Whitestrake's Mayhem.

• Defeat Amoncrul
• Defeat Baron Thirsk
• Defeat Glorgoloch the Destroyer
• Defeat Immolator Charr
• Defeat King Khrogo
• Defeat Lady Malygda
• Defeat Mazaluhad
• Defeat Nunatak
• Defeat The Screeching Matron
• Defeat Volghass
• Defeat Ysenda Resplendent
• Defeat Zoal the Ever-Wakeful