InMysteries of Winterthurn, the brilliant young detective-hero Xavier Kilgarvan is confronted with three baffling cases"e;The Virgin in the Rose-Bower,"e;"e;The Devil's Half-Acre,"e; and"e;The Blood-Stained Gown"e;that tax his genius for detection to the utmost, just as his forbidden passion for his cousin Perdita becomes an obsession that shapes his life.