Suppose D owns a mansion located on 50 forested acres; a public highway adjoins the east side of her land. A gravel road goes across D's land from the highway to the mansion on the west side of the property; a thin black telephone cable runs from a pole next to the highway, through the trees, and then connects to the mansion's telephone system. The line is almost entirely concealed in the foliage, but could be spotted by a very diligent observer. D conveys the west half of her land to E. The D-E deed expressly gives E an access easement along the gravel road, but says nothing about telephone service. D now plans to cut the telephone line. Does E have an implied easement by prior existing use?