Part 3, Goal 13. I did ?Destroy the tome? while I was still collecting Hair of the beast for Thurston . The shadow knight appeared and I hit him 300 times. After I collected enough hair of the beast, the shadow knight appeared again and I had to hit him 300 times. Not sure if that is the way it is supposed to happen. If not, don?t destroy the tome until you have collected enough hair of the beast.