Fablehaven: Keys to the Demon Prison | 
For some reason the first half to two thirds didn‘t go quickly for me. I would read a chapter or two at a time, despite the WHOLE book being action-packed, right from the start. Loved the addition of unicorns/Bracken. I love that this series really involved all the fantastical creatures out there and more. Both Kendra and Seth equally contributed to the success of defeating the demons in their own magical and human ways. Good ending.
