Oscar Wilde's powers as a detective are put to the test in his most compelling case so far. When a series of macabre discoveries is made amongst the fan mail Arthur Conan Doyle has received - a severed finger, a lock of hair and finally an entire severed hand - the game is once more afoot. The trail leads to Rome, to the very heart of the Eternal City, the Vatican itself. To uncover the mystery, Wilde and Conan Doyle must penetrate the innermost circle of the Catholic Church - seven men who have a very great deal to lose.