Trick or Treat Murder by Leslie Meier
Have read some of the author's other works so I'm familiar with the town and it's cast of characters.
This one starts out with Lucy and her friend Sue are going to have a Halloween party in the empty mansion for the kids.
There's been fires in the town that is starting to cause some to question what's going on...
Story also follows the fire investigation and the newspaper reporter who writes about it.
Also a wife who found her husband in bed with her yoga teacher!
Lucy's kids are also into activities and she has a lot on her plate to deal with, Hubby Bill is on the historic committee and it could be the calls they get at night about her snooping too much into the fire investigation or his dealings with the committee.
She's fearful their old house will be next to be set on fire.
Good story and there's so much to it. not predictable til the end.
Excerpt from one other book is included at the end.