Sinopsis

A good old-fashioned Hawaiian ghost story!
When neurosurgeon June Kato and her young daughter take a long weekend trip to Molokai, the plan is to attend a wedding and do some sightseeing. Before they know it, they're finding ghosts everywhere they go.
Ghosts aren't the only trouble and heart ache June is suddenly facing, and just when her peaceful life might be taking a turn, she gets a call from an old friend. Facing enemies new and old, June clutches her daughter's hand a little more firmly.

https://www.goodreads.com/book/show/26808633-molokai-madness

https://kayhadashi.com/

The numbering of this series of books has me totally confused. Goodreads says one thing, the author's website shows another. I'm going with the author.