You’ve gotta go to the place where you go on rouge border patrol (very far right) and there’s a little thorn bush there. Click on that, you will be holding a ball of thorny bush looking thing. Then you’ve gotta go, holding the thorn ball, and click on one of the big ‘X’s all around camp and it should replace the ‘X’ with some thorns. Repeat this by going back and getting another thorn ball from the bush and covering the other x’s then once you’re done that, talk to creamfrost and she’ll say something like ‘thank you, I feel much safer now’ or something. Hope this helps! ;)