@eyas I doubt it. Last chapters the tonttu we got the name of, 'Kolmio', means 'triangle' in Finnish. Similarly, 'Pallo', another named tonttu in this chapter, means 'ball', so nelo/nelio here most likely means 'square' (square=neliö in Finnish). The author is giving geometric names to the tonttu... Also, Liina is a common name for girls in Finnish, and as you said , it means cloth...
@Chizan "Liina" as a name has nothing to do with cloth, though. It's derived/shortened from Karoliina or Pauliina (Caroline/a or Pauline/a). "Liina" meaning cloth is no doubt connected to linen (flax), "linne" in Swedish and "lina" is Estonian.
why didn't he just kill the guy right there and then? instead he just randomly stops and goes to open the door, even if you heard a noise you should finish the fight first or you will be stabbed in the back or he will escape.