“What at first looked like another chunk of felslate is, in fact, a humanoid heart, encrusted in rock and filled not with blood but a vile, demonic substance.
It does not appear to belong to the beast you carved it out of... it seems that the infernal was holding it like a keepsake. Luckily your mining pick didn't hit it straight on.
Felsmith Nal'ryssa will want to see this.”
Mining Technique: Living Felslate