The plot here is something like a political thriller set in London at the very end of the fourteenth century, during the turmoils at the end of the reign of Richard II. Secret societies, obscure religious sects, raving nuns, and the intrigues of London life are the stuff of Ackroyd's story, which is well-padded with fascinating historical details. But for all that, the book never quite managed to get off the ground for me. I liked it just fine, but I don't think it's going to be a book that sticks with me.