I found John Ross's lack of action whilst visiting Nest disturbing. The demons came across as schoolyard bullies without enough gumption to take control of the situation in spite of having an 'elite' leader and outnumbering the good guys. Sending nightmares via telephone..? Really? And Nest basically runs around like a chicken with its head cut off - lots of impulsive action with no real consequence. Baking cookies, caroling and sledding are probably not ideal activities for people in (allegedly) mortal danger.
While this last volume is considerably better than the first two, it was still predictable and left threads dangling.