7th Heaven by James Patterson

What the cover says:
The hunt for a deranged murderer with a taste for fire, and a devastating new lead in the high-profile disappearance of the governer's son combine in an electrifying series of stunning twists and emotional surprises.
With the help of her friends and fellow members of the Women's Murder Club, Lindsay must race to find the suspects and stop the cold-blooded killers, fast.

I'm still not so sure about this Women's Murder Club series. I've been a big fan of James Patterson for a long time, and keep reading them in case he suddenly has a return to early form, but this is not it.
It's readable of course, but I've never been able to warm particularly to any of the characters. The arsonist storyline is clever, but seems to end with more of a whimper than a bang. The twist in the tale is the one redeeming feature, but it's unfortunate that you have to plough through so much mediocrity to get there.

7/10