The Skeleton Guard

The skeletons that guard the road, and many other areas on this island, are quite curious. Though eternal life seems the blessing of anyone on this island, it seems we always revive with our bodies intact. These skeletons do seem to have an air of life about them, but they are all bone and no flesh. Even the tattered rags and armor they have may have outlasted their flesh. Just how old are they? -A.A.