Liliana Heker used third person limited to create suspense and surprise. This also is very important because again the story needs to be interesting and not boring for more people to read it.
One example is that at the end of the story when rosara was given the money and not a loot bag at the end of the party everyone reading the story was some what surprised, and there was suspense created. This would not have happened if we knew everything happening involving the other characters.
The example shows how third