“crushed beast bones”

I’ve covered 60% of the map and no matter how much I kill all kinds of beasts, animals or creatures, none of them drop the object called “crushed beast bones” on me. I can’t make the level 3 potion and I’m currently level 45. What can I do?

I have killed hundreds of bears, worgs, goatmen, werewolves, beasts with thorns, wild boars and none of them give me the item… I even have an achievement of killing 1000 werewolves

Please help.

There is a mini boss in I think the Strand area in sosclen who will always drop exactly 5 crushed beast bones. It is in the north of the area