The barge anchors were unrecognisable as such, more like crustaceans, specimens of some giant type long since discarded by Nature, but still clinging to their old habitat, sunk in the deep pits they had made in the foreshore. But under the ground they were half rusted away. Dreadnought's anchor had come up easily enough when the salvage tug came to dispose of her. The mud which held so tenaciously could also give way in a moment, if conditions altered.