The Fourth Descendant by Allison Maruska
This book starts out with a man contacting the others whose family also possessed a special key.
They are told to find it and they'd meet as a documentary film is to be created as they open the special vessel.
What I like about this is the action, adventure, travel to various places and just the thought of this book.
It's so believable that this could happen and I enjoyed reading it and following along as other events occur that bring them together, some closer than others.
Wish this concept was as easy to administer in today's world to help others.
Summary of other works by the author are highlighted at the end.
Received this review copy from the author and this is my honest review.