What is historically certain is that Bruno was not released, but sent on to Rome, and was kept there in prison for seven years. He was not the sort of heretic likely to be released; though the fact of his being a Dominican, and the desire to maintain the Church's intellectual credit, delayed so long his execution. Certainly not an atheist (he called himself in several of his book-titles Philotheus; he consigns insano ateismo to perdition; [214] and his quasi-pantheism or monism often lapses into theistic modes), [215] he yet was from first to last essentially though not professedly anti-Christian in his view of the universe. If the Church had cause to fear any philosophic teaching, it was his, preached with the ardour of a prophet and the eloquence of a poet. His doctrine that the worlds in space are innumerable was as offensive to orthodox ears as his specific negations of Christian dogma, outgoing as it did the later idea of Kepler and Galileo. He had, moreover, finally refused to make any fresh recantation; and the only detailed document extant concerning his final trial describes him as saying to his judges: "With more fear, perchance, do you pass sentence on me than I receive it." [216] According to all accessible records, he was burned alive at Rome in February, 1600, in the Field of Flowers, near where his statue now stands. As was probably customary, they tied his tongue before leading him to the stake, lest he should speak to the people; [217] and his martyrdom was an edifying spectacle for the vast multitude of pilgrims who had come from all parts of Christendom for the jubilee of the pope. [218] At the stake, when he was at the point of death, there was duly presented to him the crucifix, and he duly put it aside. An attempt has been made by Professor Desdouits in a pamphlet (La légende tragique de Jordano Bruno; Paris, 1885) to show that there is no evidence that Bruno was burned; and an anonymous writer in the Scottish Review (October, 1888, Art. II), rabidly hostile to Bruno, has maintained the same proposition. Doubt on the subject dates from Bayle. Its main ground is the fewness of the documentary records, of which, further, the genuineness is now called in question. But no good reason is shown for doubting them. They are three.