CharactersThe book has three narrators who are also the main characters. The central narrator of the book is nine-year-old Oskar Schell. Oskar is a very optimistic boy who doesn't let anything discourage him. On the other hand, he cannot put things into perspective and takes everything seriously, which gives him – as he calls it – “heavy boots”. He is the undisputed protagonist of the book and a very rounded character. From the first pages, you get to know him very well, but despite this, his behavior remains unpredictable. Although he is an extremely intelligent boy who keeps most of his feelings to himself. This becomes very clear when his father died in the World Trade Center during the September 11 attacks. He tries to control himself and hides his sadness and grief as best he can. Oskar's great intelligence is manifested mainly through his great imagination and curiosity. He loves inventing impossible things and solving mysteries, but this skill is both a blessing and a curse. He can distract himself from his problems by solving intriguing puzzles, like the key he found – accidentally – in his father's closet. But he also has a hard time getting over his father's death because he constantly tries to imagine how his father died. He feels like he can't rest until he knows the answer. He is very optimistic and does not let anything discourage him. On the other hand, he cannot put things into perspective and takes everything seriously, which gives him – as he calls it – “heavy boots”. He is the undisputed protagonist of the book and a very rounded character. From the first pages, we get to know him very well, but despite this his behavior remains unpredictable. Oskar's grandfather (also called "the tenant") is a flat character. Although you can read some of his personal letters to his son... middle of paper... the whole journey to find out what the key unlocks was a waste of time. But then I reconsidered it and thought that the real meaning of the key was not the lock it unlocked. Although solving the mystery did not lead to a message from his father, the trip helped Oskar resolve his issues regarding his father's death in the World Trade Center during the September 11 attacks. The trip brought him closer to his father. Additionally, searching for the key forced Oskar to confront many of his fears, such as taking public transportation or talking to strangers. I think that's what Foer wanted to emphasize by letting the key unlock something that didn't work. I have nothing to do with Oskar's father. Oskar's journey was more important than the destination because it brought him closer to his father and made him overcome many of his fears.