Lock Nut

Definitely the weakest one in the series. The first half was hard to get through. The mystery started off boring, the usual humor was lacking, Tom and Phil seemed kinda off, the fun side characters were nowhere to be found, nor was there meaningful development of their relationship. Fortunately it picked up in the second half, but not enough to match the quality of the earlier books. The ending was great though. I hope this concludes their story, best to go out on a sort-of high.