The Haunting of Hattie Hastings by Audrey Davis

Some people won't let a little matter like death stand in their way …

A terrible tragedy leaves Hattie Hastings widowed and heartbroken. But her late husband isn't about to take his demise lying down.
Torn between delight and frustration, Hattie struggles to convince friends and family of her ghostly predicament.
There's also the small problem of best friend Cat's ex-husband trying to worm his way back into her life. And both Hattie's son, Johnny, and mum, Rachel have their own problems to face.
Bouncing between earth and the Afterlife, Gary discovers he has a mission. But what could it be, and will his beloved wife be able to help?