Those chancing to pass through the abandoned fort on the edges of the Viridale forest might notice the appearance of new sapling trees, planted at regular intervals skirting the inside of the wooden palisade.
If they were to inspect further, it would appear that they have only been planted recently, but with great care, and appear in surprisingly good health despite their recent transplantation.
Someone exceptionally perceptive might also note that parts of the palisade have begun to rot and weaken. If they frequent the camp on a regular basis they may even notice that the rate of decay is remarkable, even unnatural.
If they were to inspect further, it would appear that they have only been planted recently, but with great care, and appear in surprisingly good health despite their recent transplantation.
Someone exceptionally perceptive might also note that parts of the palisade have begun to rot and weaken. If they frequent the camp on a regular basis they may even notice that the rate of decay is remarkable, even unnatural.