Bartholomew recites an incantation and waves his hand over the troll's chest, then points at a specific spot o

Bartholomew recites an incantation and waves his hand over the troll's chest, then points at a specific spot on it. There, branded on the flesh, is a symbol of a blacksmith's hammer encircled by thorn-studded vines. "Whatever that is, that's the reason its flesh didn't burn."