"Spirit Mirror (1988), the first of his Chia Black Dragon series about a quasi-immortal Chinese vampire; the novel is rather over-richly written, but has much interest. Mortal Mask (1991), continuing the series, is the author's masterpiece to date: densely textured prose gives chilling effect to what is at once a piece of Chinoiserie and a first-rate ghost story. He continued the series with Shadow Sisters in 1993" (Encyclopedia of Fantasy).