The Big Kahuna by Janet Evanovich and Peter Evanovich
The Big Kauna is the 6th in the Fox and O'Hare series, but can totally be read as a stand-alone. And maybe should be. It's a good adventure, just doesn't fit well with the rest of the series. Kate is FBI forced to team up with Nick, a con man/crook. Throughout the series, the relationship between those two has been the draw. They are attracted to each other, and equals in intelligence and toughness, but their different morals cause the tension. Here the chemistry wasn't as charming. It was more Nick makes a pass, Kate blows him off. I didn't buy it. They banter wasn't amusing, it was awkward. And I thought their relationship was a little close after #5 than it appears here, but I could be misremembering.
In addition to Nick and Kate, we always have a rag-tag crew. Kate's dad is along to provide all the necessary explosions and big weapons. We've also got an instragram celebrity, her...