How to find that red hammer to awaken Wulfric locked abiity?

[Macbeth]

I have unlocked him but cant find that red hammer to awaken him, i search everywhere on google, youtube. Pls help.

[Rhesh]

It's in a cocoon hanging from the ceiling in Skoffa cave that you shoot down with a javelin. look for cocoons that have a red glow in them.