The use of point of view in this passage creates suspense by putting the reader in the shoes of Freddie, the protagonist who must face the troll. The passage is written in third-person limited point of view, which means that the reader is privy to Freddie's thoughts and feelings, but not to those of the other characters. This creates a sense of intimacy between the reader and Freddie, allowing the reader to feel as though they are experiencing the story alongside him.
Furthermore, the passage creates suspense by emphasizing the difficulty of the task at hand. The reader is told that Freddie's two older brothers have already tried and failed to answer the troll's questions, which suggests that the task is nearly impossible. This creates a sense of tension and anticipation as the reader wonders whether Freddie will succeed where his brothers have failed.
Finally, the use of Freddie's secret weapon, a smart phone with access to the Internet, creates a sense of hope and possibility. The reader is left wondering whether the smart phone will be enough to help Freddie overcome the troll's questions and reach his sister in the castle. Overall, the use of point of view in this passage creates suspense by immersing the reader in the protagonist's experience and creating a sense of anticipation and uncertainty about the outcome of his quest.