Title: The House on the Strand by Daphne du Maurier
Genre: Science Fiction, historical, literature
Comments: Possibly my favourite Daphne du Marier novel. Dick Young is staying at a holiday home owned by a friend who is also a biochemical researcher. He agrees to take an experimental drug developed by his friend and find it takes his mind - but not his body - 600 years into the past where he witnesses intrigue, adultery and murder. He becomes increasingly obsessed with the characters from the past and resents the time he must spend in the present world. Despite evidence of the dangers to his present day body and relationships, he can't resist taking just one more trip into the past.