To complete Fortnite's Most Wanted Challenge will not be to hard. Fortnite players have seen Epic add secret challenges to the game in previous seasons before and once again this is a challenge in which experience pays off.
To complete this Chapter 2 Season 4 secret challenge, you must find a Gnome spray-painted on a wall in one of three different locations on the map. The three places you should look for the Gnome graffiti is the following:
Fortnite's Most Wanted Challenge: How To Complete it
1. Gnome Spray One
One of the gnome sprays can be found on the small island south of Catty Corner.
2. Gnome Spray Two
You will be able to find this one inside of a building just east of Slurpy Swamp.
3. Gnome Spray Three
The final Gnome can be found north of Coral Castle
After you have located one of these three Gnomes, you will receive a notification bar in the top left corner of your screen confirming that you have completed the secret challenge and have earned your reward of 10,000 XP.
This challenge along with much more has been added in Fortnite's most recent update. New emotes and even Galactus himself have been put in-game. Make sure you do not miss your chance to jump out of the battle bus and explore all of Fortnite's newest features.