It is an unborn, probably aborted baby’s body which became animated (brought to life somehow) because of the demon. Btw, the dead baby’s soul already left the body as it automatically goes to heaven and become an angel. Going back, the baby’sbody becomes a demon itself and punish people even if innocent (bah, all people aresinners anyway) and it will only rest in peace until its truemother holds it (unlikely to happen though). The tianak has psychic powers: it could let a knife fly towards you, etc. the one way to kill it is simply burn it. (but hard coz you versus a demon baby which is fast, blahblah). To scare it, first you mustt have a piece of its skin and a lighter. Show it that you will burn its skin and it will be scared and will go away. Muster your courage though! It is a frightening creature!