Popatans. Losses between worlds. Often they die thousands from hunger, cold, disease, from the fangs of predators, on the fires of savages and in slavery of bloodthirsty pirates, and with them invaluable knowledge, artifacts and devices are lost. But there is a world one century behind ours. It looks like ours, but a little different, and they realize all the benefits of such newcomers, and detachments have been created there, the purpose of which is to capture involuntary wanderers through the edge of the worlds? But not all Popatans are peacefully disposed, and some of them bring with them huge, huge troubles. Such newcomers will have to resist one of the county detachments of hunters for the Popatans.