I wasn't too impressed with the ending either and I felt it posed more questions than it answered really. Loved both the main characters though – Wheels and Bethany, as nasty and disturbed as she was!
Not tried The Little Stranger as the review show on it didn't grab me but know I will have to read it at some stage.
Next on my list is Sacred Hearts. The local library called me to say the copy I requested has arrived, so looking forward to getting that on Tuesday.