The site of the Vampire's home has always been one of the greatest mysteries of the novel. The route descriptions hardly mention any recognisable landmarks, but focus on evocations of a wild and snow-covered landscape, haunted by howling wolves and lit by supernatural blue flames at night. Because of this conspicuous vagueness, the annotated Dracula editions by Leonard Wolf, Clive Leatherdale and Leslie Klinger simply assume Bram Stoker had no specific location in mind and place the castle in or immediately next to the Borgo Pass. As a consequence, these editions take for granted that the Count's men, pursued by Harker, Holmwood, Morris and Seward, follow the Bistrița River all the way up to Vatra Dornei and then travel the route through the Borgo Pass already taken by Van Helsing and Mina. The same view is adopted by Andrew Connell in his Google Map mark-ups. These theories ignore or misinterpret Stoker's hint that around the 47th Parallel, the Count's men are supposed to leave the river and cross-over to Transylvanian territory: