Some ten years after Dee's death, the antiquarian Robert Cotton bought land round Dee's house and began digging for papers and artifacts. He found several manuscripts, mainly records of Dee's angelic communications. Cotton's son gave these to the scholar Méric Casaubon, who published them in 1659, with a long introduction critical of their author, as "A True & Faithful Relation of What passed for many Yeers between Dr. John Dee (A Mathematician of Great Fame in Q. Eliz. and King James their Reignes) and some spirits". As the first public revelation of Dee's spiritual conferences, the book was popular. Casaubon, who believed in the reality of spirits, argued in his introduction that Dee was acting as the unwitting tool of evil spirits when he believed he was communicating with angels. This book is mainly responsible for the image, prevalent for the next two-and-a-half centuries, of Dee as a dupe and deluded fanatic. About the time the "True and Faithful Relation" was published, members of the Rosicrucian movement claimed Dee as one of their number. There is doubt, however, that an organized Rosicrucian movement existed in Dee's lifetime, and no evidence he ever belonged to any secret fraternity. His reputation as a magician and the vivid story of his association with Edward Kelley have made him a seemingly irresistible figure to fabulists, writers of horror stories and latter-day magicians. The accretion of fanciful information about Dee often obscures the facts of his life, remarkable as they were. It also does nothing to promote his Christian leanings: Dee looked to the angels to tell him how he might heal the deep and serious rifts between the Roman Catholic Church, the Reformed Church of England and the Protestant movement in England. Queen Elizabeth I used him several times as her court astronomer, not solely because he practised Hermetic arts, but as a deeply religious and learned, trustworthy man.