** spoiler alert ** 
 Excellent ending to a great series. There were some minor things that bothered me in this novel but it gets five stars simply because it didn't dissapoint and gave an appropriate ending to a series I've followed since I've picked up The Warded Man just as it was released. 
 Second and third book weren't my favourite of the series and fourth was a little better but The Core was worthy of a final novel. Some things were left a bit unresolved but all in all it was a satisfying read.