Quote in diagram, "Dracula can use Wolf Form to attack or pass through a Hunter. Thus, he could move [from Bordeux] to Clermont-Ferrand and attack Van Helsing, or he could move through Van Helsing to Geneva or Marseilles, and Van Helsing wouldn't be the wiser."
I suppose what the diagram is showing is that Dracula can sort of waste his card use of Wolf Form, because he is spending a blood to move only one city instead of two to attack Van Helsing. His Wolf Form does not slide an extra card off the track; instead, it slides under his destination location. His destination location will be known by the Hunters because he is attacking Helsing; his Wolf Form is wasted and he must wait til he retrieves it from falling off the track, and he is short a blood (which has a 1 in 5 chance of mattering since he's going into combat and he will want as many levels as he can get to not be killed).
Really, if he wanted to attack Van Helsing that badly, my point is why doesn't he save himself the one blood and use the Clermont-Ferrand movement card? Then he will also have the Wolf Form for later, like for running away from freaking Van Helsing!
New Question: can Wolf Form be used to move two spaces away when starting in the same city as a Hunter(s), or is he prevented in some way?
What they should have typed is to have kept Van Helsing, exempting the whole attacking him bit (again, because it is a waste of Wolf Form, from my estimation). In addition, they should have had Mina (or any other Hunter figure) sitting on Geneva or Marseilles (let's say Geneva). From Bordeux, Dracula can assume Wolf Form and skip over Helsing to attack Mina in Geneva (combat-wise, someone much easier to bite in theory). Or, from Bordeux to Marseilles, Dracula can travel in Wolf Form, and neither Hunter is the wiser.
Does this make more sense, Julia? I hope the reason for my confusion is a lot more clear now (especially after getting some sleep).
Also, can Wolf Form be used to cross over one sea area unnoticed, therefore also negating the need to spend a blood to cross sea?