The newest Fortnite challenges require players to locate the thief, Raz.
This is a Spire challenge—involving the giant spike in the center of Fortnite Island this season. It requires players to find "a thief," but neglects to mention exactly who that thief is. Fortunately, players were quick to figure it out and spread the word. The thief is none other than Raz who, in addition to being one of the major characters of that archetype in-game, is additionally referenced in the remaining quests along this chain.
Here's where to find Raz in Fortnite.
Raz Location in Fortnite
Raz can be found in Colossal Crops at the furthest northwestern part. He should be hanging out inside a building in that corner and, with the quest active, will have a "Spire" dialogue option for players to check out. Speaking with him in this regard rewards the next task: finding a diary-like log a few paces south and listening to the whole thing.
According to players, the log should glow, making it easily seen in the surrounding area. It will be up against a dusty red brick wall, backlit in blue—creating that noticeable contrast. The log, itself, is a small device that is dark gray on top with a lit screen, light ray on the bottom, and has a small red button in the center.
Once listened to, the next step is to return to Raz.