Grave Expectations (The Dead Woke‪)‬

Claire and Sophie aren't your typical murder investigators . . .
Claire Hendricks is a hapless 30-something true crime fan working as a freelance medium. When she is Invited to an old university friend's country pile to provide entertainment for a family party, her best friend Sophie tags along. In fact, Sophie rarely leaves Claire's side, because she's been haunting her ever since she was murdered at the age of 17.
When the pair arrive at The Cloisters it's clear this family is hiding more than just the good china, as Claire realizes someone has recently met an untimely end at the house. Teaming up with the least unbearable members of the Wellington-Forge family - depressive ex-cop Basher and teenage reactionary Alex - Claire and Sophie determine to figure out not just whodunnit, but who they killed, why and when…
“Read this fabulous book - you will not regret it!” ? Ben Aaronovitch