Abstract of the book "Unknown"

What would you do if the truth were more dangerous than a lie? After a death shrouded in mystery, Dylan and his group of friends refuse to accept the official version. Determined to uncover what really happened, they plunge into an investigation that soon descends into a nightmare. They are not alone: ​​someone is watching them from the shadows. Amid threatening notes and messages, a stranger begins to pull the strings of their lives, transforming every clue into a trap and every suspicion into a death sentence. Following lead after lead and risking everything they have left, Dylan will come to understand that the enemy is not only close... but knows all their secrets. In this game of obsession and death, the question is not who is lying, but who will survive to tell the truth.