In the text evidence, there is an imaginary situation strongly suggesting that Alexander would never get into the house, even if he were paid a huge amount of money, such as one million dollars. It is important to mention that he considers entering to the house as something that could put his life in risk. All this emotions that include fear and danger might be caused because people don't trust something they don't know. So, Alexander is afraid of the man who lives in the house because he is unknown.
