Go Directly West from the dock, and you will see it in a group of trees somewhere in the middle of the isle:)
there is no riddle box
There none.
In the northwest corner of the isle :)
There isn't a riddle box on every single Isle, but most have one... so there may not be one on Brown,but there might be...
It's near the north-eastern side of the forest
If you follow the western edge of the part of the isle that bumps up south, it will be in the forest, or if you head directly west from the dock and go a couple stride lengths south you should run in to it also.
It is by the southern south west edge of the light green grassy area in the center. -CalicoFilly
Close to the western corner
in a bolder
It is near the beach in east corner of the isle.
It is on the top center of the forested part.
It is South and slightly East of the dock house on Prairie Isle.