Good grief, van Helsing and that other doctor are really thick as bricks aren't they? "Ok, so these idiots have self sabotaged our previous attempts at thwarting the malign presence that almost kills this girl at a nightly basis. Let's try the exact same thing a few more times just to be sure! And better not tell -anybody- about what we are doing lest they act sensible when something strange happens!"

Also Dracula isn't the brightest either. "Ah, they are on to me. Well, well, I'll just keep my hyper focus on this single girl instead of just moving along and finding other victims. And yeah, I will recruit a fucking wolf from a zoo to break a window for me because I can't just fucking pick up a brick and throw it thru the glass for some reason."

"And when the wolf has broken the window, the maid servants will all be so frightened that they will go straight into the sherry. Which I of course has laced with laudanum, conveniently left behind by Dr van Helsing!"

The only way this makes sense if you view it thru the lense of a point and click adventure game.