I just finished Usagi Yojimbo #'s 104-105, and damn were these two of the creepier issues I've read. I mean, it was practically reminiscent of many mid-season Buffy episodes, wherein the horror was built up, and left you dangling for a week feeling a little sick and creeped out. That is what these two comics do to you; leave you feeling a little cold and nervous for the heroes.
Stan Sakai never disappoints either, so I'm really excited to see where this is going to go. It's going to be one hell of a ride.