So far in the DaVinci Code by Dan Brown the protagonist Robert Langdon has gotten the call to go to the louvre to investigate a gruesome murder. He has taken the call and has arrived at the museum to find that the victim has contorted his body into a strange shape that has significance. He got the call because he is one of the most renound symbologists in the world and no one can figure out what the body shape means and they need his help deciphering it's meaning. They also need someone to find the murderer which Langdon can help with because he has a lot of experience from the previous book Angels and Demons. The first thing that Langdon does after he sees the body is decipher the message the the victim left behind and he has to explain it to the police cheif who is not an expert on codes like Langdon is. Though Langdon is a big expert on symbols he has a hard time with the code the victim left behihnd and it takes him a long time to even figure out what it means.