If you like technology and the mysterious universe this is an interesting book. I don't care if it's true or a huge hoax, either way very interesting.
It told the story of a man in the early 1980s, who found that his BBC Micro computer had become a conduit through which he could communicate with a man from the sixteenth century. The latter was mystified by the “box of lights” which had appeared in his house, and accused the computer owner of witchcraft. Gradually, however, as the two carried on their electronic conversations a more trusting relationship developed. The programme concluded by stating that archival research supposedly revealed that the sixteenth-century man had actually existed, and that expert linguists had concluded that the dialect and vocabulary he used was authentic to the period.