You were out travelling with your companions the you came across blood and dead bodies you wonder what could have possibly happened

You all split up you decide to follow a blood trail you keep following it till you see a small river you stop and look around till you see a Tiefling sitting on the ground holding her side it must have been her blood you were following

You try to approach her to see if she is okay but you stop and watch the Tiefling burst into flames she seems to be healing